antonym

A word which has the opposite meaning of another word.

“Rich” is an antonym of “poor”; “full” is an antonym of “empty”.

A word which has the opposite meaning of another word.

All four lines of the pattern are required to establish that hot and cold are antonyms. The water is hot entails The water is not cold. The water is cold entails The water is not hot. The water is not hot does not entail The water is cold. The water is not cold does not entail The water is hot.

"The word 'boom' always makes me uneasy because the antonym of it is bust," said Patrick Jankowski, vice president of research at the Greater Houston Partnership. "Houston is not in a boom -- it is on a new path."