Definitions for: Significant


[adj] fairly large; "won by a substantial margin"
[adj] rich in significance or implication; "a meaning look"; "pregnant with meaning"
[adj] important in effect or meaning; "a significant change in tax laws"; "a significant change in the Constitution"; "a significant contribution"; "significant details"; "statistically significant"
[adj] (statistics) 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"



Webster (1913) Definition: Sig*nif"i*cant, a. [L. significans, -antis, p. pr.
of significare. See Signify.]
1. Fitted or designed to signify or make known somethingl
having a meaning; standing as a sign or token; expressive
or suggestive; as, a significant word or sound; a
significant look.

It was well said of Plotinus, that the stars were
significant, but not efficient. --Sir W.
Raleigh.

2. Deserving to be considered; important; momentous; as, a
significant event.

Significant figures (Arith.), the figures which remain to
any number, or decimal fraction, after the ciphers at the
right or left are canceled. Thus, the significant figures
of 25,000, or of .0025, are 25.


Sig*nif"i*cant, n.
That which has significance; a sign; a token; a symbol.
--Wordsworth.

In dumb significants proclaim your thoughts. --Shak.

Synonyms: big, considerable, earthshaking, epochal, epoch-making, evidential, evidentiary, fundamental, head(a), important, key, large, meaning(a), meaningful, momentous, monumental, noteworthy, operative, portentous, pregnant, probative, prodigious, profound, remarkable, substantial, world-shaking, world-shattering

Antonyms: insignificant, nonsignificant, unimportant

See Also: of import

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