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not regularly

ADVERB
infrequently
Synonyms
STRONGEST
intermittently now and then occasionally rarely sparingly sporadically
WEAK
hardly ever scarcely uncommonly unusually
Antonyms
STRONGEST
frequently regularly
ADVERB
sporadically
Synonyms
STRONGEST
intermittently now and then occasionally rarely seldom sparingly
WEAK
hardly hardly ever little once in a blue moon scarcely uncommonly unusually
Antonyms
STRONGEST
frequently regularly usually