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Definition of significantly

significantly

/sɪɡˈnɪf.ɪ.kənt.li/
sig · nif · i · cant · ly
Adjective:significant
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significantly Lexical Profile

significantly Game Scores & Validity

• adverb

1

In a sufficiently great or important way as to be worthy of attention; to a notable or substantial degree.

Example

"Household energy costs have dropped significantly since the installation of the new solar panels."

2

In a way that is statistically significant and unlikely to be the result of random chance.

Example

"The treatment group scored significantly higher on the memory test than the control group."

3

In a manner that conveys a special, hidden, or suggestive meaning; meaningfully or pointedly.

Example

"She glanced significantly at her watch when the meeting ran past five o'clock."

Synonyms
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Antonyms
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Word Nuance & Usage

In scientific and statistical contexts, 'significantly' specifically indicates that a result is unlikely to have occurred by random chance (statistical significance), rather than merely meaning 'very large' or 'important'.

• Rhymes for significantly

• Nearby Words

signet
significance
significant
significantly
signification
significatrix
signify

Word Origin & Etymology

Formed in English from the adjective 'significant' (borrowed from Latin 'significantem', meaning 'indicating' or 'meaningful', from 'signum' meaning 'sign' and 'facere' meaning 'to make') plus the adverbial suffix '-ly'.

Cite this Entry

Wordmom. (2026). Definition of Significantly. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/significantly
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