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Definitions

decisively

[dih-sahy-siv-lee] / dɪˈsaɪ sɪv li /
ADVERB
absolutely
Synonyms
STRONGEST
actually categorically definitely doubtless exactly positively precisely really surely truly unconditionally unquestionably
WEAK
come hell or high water conclusively decidedly easily for sure no ifs ands or buts no strings attached on the button on the money on the nose right on straight out sure as can be sure as hell sure enough the very thing unambiguously
Antonyms
STRONGEST
doubtfully dubiously questionably uncertain
WEAK
doubtfully
ADVERB
conclusively
Synonyms
STRONGEST
convincingly definitively
WEAK
determinately once and for all once for all positively
ADVERB
decidedly
Synonyms
STRONGEST
clearly determinedly distinctly downright positively really terribly unmistakably
STRONG
emphatically
WEAK
absolutely by all means flat out for a fact in spades no catch no holds barred no ifs ands or buts no mistake no strings attached of course powerful right straight out strongly sure surely terrifically unequivocally
Antonyms
STRONGEST
doubtfully
ADVERB
emphatically
Synonyms
STRONGEST
absolutely assuredly certainly distinctly flatly unequivocally
STRONG
decidedly
WEAK
entirely of course undoubtedly with decision
Antonyms
STRONGEST
doubtfully questionably
WEAK
hesitantly indecisively indistinctly
ADVERB
finally
Synonyms
STRONGEST
certainly completely definitely permanently
STRONG
lastly
WEAK
assuredly beyond recall beyond shadow of doubt conclusively convincingly determinately done with enduringly for all time for ever for good in conclusion inescapably inexorably irrevocably once and for all past regret settled with conviction
Antonyms
STRONGEST
doubtfully dubiously questionably
WEAK
inconclusively
ADVERB
firmly
Synonyms
STRONGEST
adamantly doggedly persistently resolutely staunchly steadfastly strictly stubbornly tenaciously
STRONG
unwaveringly
WEAK
constantly indefatigably intently obdurately obstinately perseveringly pertinaciously purposefully stolidly through thick and thin unchangeably with heavy hand
Antonyms
WEAK
changeably flexibly indefinitely movably waveringly weakly
ADVERB
resolutely
Synonyms
STRONGEST
bravely firmly steadfastly
WEAK
obstinately unwaveringly

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.

Congress acted decisively with Genius, and the Clarity Act is the necessary next step.

From The Wall Street Journal • Apr. 8, 2026

Reverting to that approach against Spurs allowed them to pick moments in which they exerted energy, attacking the box decisively when spaces opened up – as a more naturally counter-attacking side.

From BBC • Mar. 24, 2026

But the best opportunities often emerge in these fast-moving, uncomfortable environments, requiring investors to act decisively, even when the setup feels anything but certain.

From Barron's • Mar. 19, 2026

Why has demand shifted so decisively toward inference, and what does it mean for the market?

From The Wall Street Journal • Mar. 16, 2026

It has turned out that it’s Johnson in the White House—and black votes were a major factor in his winning as decisively as he wanted to.

From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey