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sporadically

[spuh-rad-ik-uh-lee] / spəˈræd ɪk ə li /
ADVERB
infrequently
Synonyms
STRONGEST
intermittently now and then occasionally rarely seldom sparingly
WEAK
hardly hardly ever little not regularly once in a blue moon scarcely uncommonly unusually
Antonyms
STRONGEST
frequently regularly usually
ADVERB
intermittently
Synonyms
STRONGEST
infrequently occasionally periodically
WEAK
again alternately betimes cyclically discontinuously sometimes

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