significant meaning and definition

SIGNIFICANT adjective

Definition of significant (adjective)

1. important in effect or meaning
   • "a significant change in tax laws"; "a significant change in the Constitution"; "a significant contribution"; "significant details"; "statistically significant"
   • synonyms: important
   • antonym: insignificant
2. fairly large
   • "won by a substantial margin"
   • synonyms: substantial
3. too closely correlated to be attributed to chance and therefore indicating a systematic relation
   • "the interaction effect is significant at the .01 level"; "no significant difference was found"
   • antonym: nonsignificant
4. rich in significance or implication
   • "a meaning look"
   • synonyms: meaning, pregnant