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Definitions

significantly

[sig-nif-i-kuhnt-lee] / sɪgˈnɪf ɪ kənt li /
ADVERB
essentially
Synonyms
STRONGEST
actually approximately necessarily originally permanently quite really substantially truly typically virtually
STRONG
fundamentally
WEAK
at heart at the heart of centrally characteristically chiefly determinately factually importantly in effect in essence indispensably inherently intimately intrinsically materially more or less so naturally primarily principally radically vitally
Antonyms
STRONGEST
doubtfully
WEAK
apparently on the surface superficially
ADVERB
far
Synonyms
STRONGEST
much somewhat well
WEAK
decidedly extremely greatly incomparably notably quite very very much
ADVERB
necessarily
Synonyms
STRONGEST
automatically naturally no doubt undoubtedly unquestionably
WEAK
accordingly as a matter of course axiomatically beyond one's control by definition by its own nature cardinally come what may compulsorily consequently exigently from within fundamentally incontrovertibly indubitably ineluctably inescapably inexorably irresistibly of course of necessity perforce positively pressingly unpreventably vitally willy-nilly without fail
Antonyms
STRONGEST
doubtfully questionably
WEAK
unnecessarily
ADVERB
quite
Synonyms
STRONGEST
fairly pretty rather reasonably relatively somewhat very
WEAK
considerably far moderately more or less to some degree
Antonyms
STRONGEST
little
WEAK
incompletely
ADVERB
somewhat
Synonyms
STRONGEST
a little considerably fairly far kind of moderately partially pretty quite rather slightly
WEAK
adequately bearably in part incompletely insignificantly more or less not much ratherish some something sort of to a degree tolerably well
Antonyms
STRONGEST
little
WEAK
not at all

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Light offers significantly more available bandwidth, avoids interference with existing wireless systems, and can be directed with high precision.

From Science Daily • Apr. 2, 2026

Investor redemptions in private-credit funds significantly picked up during the fourth quarter of last year following the bankruptcies of the auto-parts company First Brands and the subprime auto lender Tricolor Holdings.

From The Wall Street Journal • Apr. 2, 2026

“What’s left is a significantly narrowed case, and we look forward to presenting our defense to the remaining claims in court.”

From Los Angeles Times • Apr. 2, 2026

Petrol and diesel are being rationed, and prices, already significantly higher than in neighbouring Thailand, have risen sharply.

From BBC • Apr. 2, 2026

I did read once that anxiety can significantly alter space-time perception.

From "I'll Give You the Sun" by Jandy Nelson

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.