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Definitions

on occasion

ADVERB
at times
Synonyms
WEAK
every so often from time to time now and again occasionally once in a while
ADVERB
ever and again
Synonyms
WEAK
at times ever and anon evermore every so often from time to time now and again now and then occasionally
ADVERB
intermittently
Synonyms
STRONGEST
occasionally periodically sporadically
WEAK
again betimes every so often from time to time now and again once in a while sometimes
ADVERB
now and then
Synonyms
STRONGEST
every now and then every so often infrequently intermittently now and again occasionally periodically sporadically
WEAK
at intervals at times every once in a while from time to time hardly irregularly not often off and on once and again once in a blue moon once in a while once or twice sometimes
ADVERB
occasionally
Synonyms
STRONGEST
hardly infrequently periodically seldom sometimes sporadically
WEAK
at intervals at random at times every so often from time to time irregularly now and again once in a blue moon once in a while once or twice uncommonly
Antonyms
WEAK
always constantly frequently regularly steadily usually
ADVERB
off and on
Synonyms
WEAK
alternately at intervals at times every once in a while every so often fluctuating from time to time irregularly now and then occasionally once in a while sometimes sporadically vacillating variably
ADVERB
on and off
Synonyms
WEAK
at intervals at times discontinuously every now and then every once in a while every so often from time to time hardly infrequently intermittently irregularly now and again now and then occasionally off and on once in a blue moon once in a while periodically sometimes sporadically
ADVERB
once in a while
Synonyms
WEAK
at intervals at times every now and then every so often from time to time hardly infrequently irregularly now and again once in a blue moon periodically rarely seldom sometimes sporadically
ADVERB
sometimes
Synonyms
STRONGEST
consistently constantly frequently occasionally
WEAK
at intervals at times ever and again every so often from time to time here and there intermittently now and again now and then off and on once in a blue moon once in a while periodically recurrently
Antonyms
WEAK
never
ADVERB
uncommonly
Synonyms
STRONGEST
exceptionally extremely remarkably strangely unusually
WEAK
extra hardly ever in few instances irregularly not often now and then occasionally oddly particularly peculiarly rarely scarcely ever seldom sporadically very
Antonyms
STRONGEST
normally usually
WEAK
commonly frequently

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.

Many of us who covered Trump’s first administration heard him on occasion screaming at someone in the Oval Office.

From Salon • Apr. 3, 2026

As we talk, on occasion the screeching call of a toucan pierces the quiet, and miles above, the same giant black birds hover menacingly in groups, surveying everything below.

From Slate • Mar. 30, 2026

However, he did not report the kiss and accepted to the tribunal that there had been kisses on the cheek on occasion.

From BBC • Mar. 22, 2026

Your correspondent has written about it on occasion.

From MarketWatch • Mar. 20, 2026

And we can, on occasion, deliberately alter some of these genes to change their functions, thereby resulting in altered human states, altered physiologies, and changed beings.

From "The Gene" by Siddhartha Mukherjee