English dictionary

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English adjective: significant

1. significant important in effect or meaning

SamplesA significant change in tax laws.
A significant change in the Constitution.
A significant contribution.
Significant details.
Statistically significant.


Similarearthshaking, epoch-making, epochal, evidential, evidentiary, fundamental, large, momentous, monumental, noteworthy, operative, portentous, probative, probatory, prodigious, profound, remarkable, world-shaking, world-shattering

See alsoimportant, meaningful, of import


Antonymsunimportant, insignificant

2. significant fairly large

SamplesWon by a substantial margin.




3. significant too closely correlated to be attributed to chance and therefore indicating a systematic relation

SamplesThe interaction effect is significant at the .01 level.
No significant difference was found.

Domain categorystatistics


4. significant rich in significance or implication

SamplesA meaning look.

Synonymsmeaning, pregnant


Antonymsmeaningless, nonmeaningful

Based on WordNet 3.0 copyright © Princeton University.
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