Term: Antonyms

USE:

An antonym is a word that means the opposite of another.

eg: 'fat' is an antonym of 'thin'

More examples of antonyms:

Antonyms made by adding the prefix un-

likely / unlikely
able / unable
fortunate / unfortunate

Antonyms made by adding the prefix non-

entity / nonentity
conformist / nonconformist

Antonyms made by adding the prefix in-

tolerant / intolerant
discreet / indiscreet
decent / indecent