What’s the opposite of “mother”?

“Cold” answers “hot.” Most words don’t get off that easy.

A thesaurus will hand you one antonym per word and move on. But every opposite answers a particular question. The opposite of mother along parental gender is father. Along generational position, it’s child. Along nurturing behavior, it’s neglect — the mother who isn’t one. Three different questions, three different opposites, all correct.

Even “hot,” the textbook case, opposes four ways: cold in temperature, mild in spiciness, unpopular in trendiness, ugly in attractiveness. The mapping covers 1.5 million words and phrases of the raw vocabulary — every opposite tagged with its axis and rated 1–7 for strength. The deep end of that list is noisy, and it’s there for mining: emergent patterns among the over-represented terms, and better odds that an interesting topic surfaces from the long tail. Familiar words like the ones below carry the clean story.

Pick a word apart

Click a word

Darker means stronger opposition (rated 1–7 in the data; showing 3+). Notice how often the “obvious” opposite is only the first axis of several.

Whole topics oppose, too

Single words are just the start. The data also pairs opposing topics — each side a pool of words, the pair scored for whether the opposition would be self-evident to a puzzle player. There are 162,837 scored pairs; here are a few dozen of the cleanest, one per axis. Click around.

Scroll the list
Click a pair

Showing 48 of 162,837 scored pairs — one per axis.

For a puzzle, an opposing pair is free structure. A board built on Wired vs Tired reads instantly — players sort mania from lethargy without being told the rule. And because each side ships as a pool of member words, one pair yields many boards.

Where this lives in the data

The antonyms & contrasts table in the release carries both layers: word-level opposites tagged with axis and strength, and the scored topic pairs with their member pools. See real rows from every table, or just take the whole thing — it’s public domain.