Antonym match rules require a chosen word to express the direct opposite of the prompt’s displayed sense while matching its part of speech. A merely associated, different, or contextually contrasted word does not qualify as a direct antonym.
In Antonym Match, those rules apply to five fixed rounds. Each round presents one English prompt word, its grammatical category, a short sense note, and four candidate words. The task is to identify the candidate with a direct lexical-opposite relationship to that exact meaning.
Core Rules for a Valid Match
An antonym match is stricter than identifying two words that feel different. The candidate must oppose the meaning named in the sense note, and it must match the prompt’s part of speech. A movement word, for example, is not automatically the opposite of a temperature word. Likewise, a term related to probability is not necessarily the direct opposite of a term concerning capability.
| Decision check | What qualifies | What does not qualify |
|---|---|---|
| Displayed sense | A direct opposite of the meaning shown in the prompt | An opposite belonging to another meaning of the same word |
| Part of speech | A candidate in the same grammatical category | A related word from a different grammatical category |
| Relationship | Direct lexical opposition | Association, difference, or contrast that depends on context |
Two words can occupy opposite positions in a discussion without being lexical antonyms. The match therefore depends on a precise dictionary-level relationship, not on whether a pair could be used to argue opposing sides of a topic.
How to Play Antonym Match
- Read the complete prompt. Check the word, its stated grammatical category, and the short sense note. Treat the sense note as a required boundary rather than an optional clue.
- Compare all four candidates with that meaning. Look for the word that directly opposes the displayed sense in the same part of speech, and reject choices that are only associated, different, or loosely contrasted.
- Submit one candidate. On a touch or pointer device, tap the answer directly. With a keyboard, use Left or Up for the previous candidate and Right or Down for the next; movement wraps around the four choices. Press Enter to submit the highlighted candidate.
- Read the result before continuing. A correct match awards 200 points. A first distinct mistake leaves the round open and reports that the choice is not the direct opposite for the stated sense. Repeating that same wrong choice does not count as another mistake.
- Finish the sequence or restart. Clear all five rounds for exactly 1,000 points. If you make a second different mistake, the run deadlocks and Restart becomes necessary.
The four choices are designed to require meaning-based judgment rather than position guessing. They are unique strings, and several distractors can share the prompt’s part of speech while still lacking the required direct-opposite relationship.
Scoring, Mistakes, and Restart
The complete scoring formula for a successful run is 5 correct matches × 200 points = 1,000 points.
| Event | Result |
|---|---|
| Correct selection | Awards 200 points and advances through the fixed round sequence. |
| First distinct mistake | Leaves the current round open and provides feedback tied to the displayed sense. |
| Repeated wrong selection | Does not add a second mistake because the same error signature is suppressed. |
| Second different mistake | Deadlocks the run until Restart is selected. |
| Completion or deadlock | Selection and keyboard movement can no longer alter the score, level, cursor, or history. |
Restart restores round one, the first highlighted candidate, a score of zero, and an empty mistake list. It therefore creates a clean attempt rather than carrying an earlier deadlock or score forward. The best completed score is stored locally when browser storage is available, but storage failure does not change the vocabulary task.
Why the Displayed Sense Controls the Answer
English words can have several meanings, so the prompt word alone may not identify a single lexical relationship. The verb accept, for example, can describe believing a statement, receiving an object, admitting a person, or agreeing to an invitation. Its direct opposite changes with the intended sense. An adjective such as hot can refer to physical temperature, emotional tone, current popularity, or electrical state.
That is why Antonym Match names the intended sense before selection. A candidate that is a valid opposite under a different meaning does not count. The grammatical-category label provides a second boundary: an adjective prompt requires an adjective candidate, while a verb prompt requires a verb candidate. Together, the sense note and part of speech make the expected relationship bounded and inspectable.
How the Opposites Are Verified
Each winning pair in the five rounds is backed by a literal antonym pointer for the displayed grammatical category and sense in Princeton WordNet 3.1. The raw adjective and verb data files encode antonymy with an exclamation-mark pointer between synsets or lemmas. The implementation fixture records the source and target offsets rather than treating an AI-generated similarity judgment as proof.
Cambridge Thesaurus provides an independent cross-check. The Cambridge Thesaurus entry for accept and the Cambridge Thesaurus entry for hot are among the five prompt pages used for that check. During implementation, all five Cambridge prompt pages returned HTTP 200, and the corresponding opposite appeared in the downloaded page content. The second lexicographic source reduces the risk of confusing a related term with a direct antonym or relying on one database’s organization.
- Every winning fixture requires both an explicit WordNet antonym pointer and an independent Cambridge Thesaurus check.
- Product rounds are checked against the expected prompt, answer, category, sense, offset pattern, candidate uniqueness, and varied correct positions.
- A private nine-case external fixture stores five direct-pointer relationships and four same-part-of-speech or related-sense boundaries with no qualifying pointer.
- Focused tests keep the external lexical evidence independent from evaluation of the interface, candidate order, scoring, and mistake policy.
The evidence supports the lexical facts only. Interface behavior, fixed candidate order, the 200-point score path, and the two-mistake policy are separate product decisions.
How Candidates Stay Inspectable
The correct answer is not exposed before selection. All candidate buttons share the same markup, and no ARIA label, data attribute, CSS class name, hidden text, or status message marks the winning option. A highlighted style indicates only the player’s keyboard cursor, not whether a word is correct.
Across the five rounds, the correct position varies among all four candidate slots. Each round’s order is fixed for reproducible testing but changes from round to round, so position alone cannot reveal the answer. This supports the rule-based approach: inspect the displayed meaning, compare the candidates, and use the direct lexical relationship rather than a visual shortcut.
Controls, Privacy, and Game Limits
Touch and pointer interaction is direct: tapping a candidate submits it. Candidate buttons are native controls at least 44 pixels high, and their text can wrap. The mobile interface remains a single bounded column before expanding to two columns on wider screens; minimum-width and overflow protection prevent a long candidate from creating horizontal page overflow.
Keyboard interaction covers the entire puzzle. Arrow movement wraps between choices, and Enter submits the highlighted answer. When a native button already has focus, its native Enter action is allowed to complete the submission so the global shortcut cannot submit the same choice twice. A double-Escape boss key can replace the puzzle with a spreadsheet-like cover and then return it without changing the fixture, score, or active candidate.
All gameplay executes locally in the browser. The game sends no selections to a server, requests no account, uses no paid service, and adds no package dependency. Its scope is recreational vocabulary practice: it is not an adaptive test, reading-level diagnosis, language certification, or intelligence measure. The five rounds, candidate orders, and score path are fixed and reproducible. Completing the game shows only that you identified these five source-checked relationships, not that it measured your overall vocabulary or ability.