Main entry: important, significant
Definition: important in effect or meaning
Usage: a significant change in tax laws; a significant change in the Constitution; a significant contribution; significant details; statistically significant
Antonyms: insignificant, unimportant
Definition: devoid of importance, meaning, or force
Definition: limited or below average in number or quantity or magnitude or extent
Antonyms: inoperative
Definition: not working or taking effect
Antonyms: superficial
Definition: concerned with or comprehending only what is apparent or obvious; not deep or penetrating emotionally or intellectually
Main entry: significant
Definition: too closely correlated to be attributed to chance and therefore indicating a systematic relation
Usage: the interaction effect is significant at the .01 level; no significant difference was found
Antonyms: nonsignificant
Definition: attributable to chance
Main entry: significant, substantial
Definition: fairly large
Usage: won by a substantial margin
Antonyms: inconsiderable
Definition: too small or unimportant to merit attention
Main entry: meaning, significant, pregnant
Definition: rich in significance or implication
Usage: a meaning look
Antonyms: nonmeaningful, meaningless
Definition: having no meaning or direction or purpose