114 entries under irregular topic. ×

10
uncertain(adjective, unstable, doubtful, unsettled)
10
whimsical(adjective, free, careless, wild, unstable)
9
volatile(adjective, weak, free, wild, uncertain)
8
haphazard(adjective, restless, disturbed, broken)
8
restless(adjective, content, unstable, unsettled)
8
unsystematic(adjective, erratic, random, haphazard)
7
shifting(adjective, strange, unstable, fantastic)
7
eccentric(adjective, unpredictable, unreliable, uneven)
7
impulsive(adjective, careless, unstable, unreasonable)
7
recurrent(adjective, unreliable, variable, broken)
6
jerky(adjective, rough, odd, unreliable)
6
mercurial(adjective, cross, careless, melancholy, uncertain)
6
spotty(adjective, sporadic)
6
unpredictable(adjective, careless, strange, unstable, unreasonable)
6
unreliable(adjective, unstable, doubtful, unsettled)
6
wayward(adjective, careless, unstable, unreasonable)
5
catchy(adjective, informal, sporadic)
5
disconnected(adjective, loose, unreliable, uneven)
5
flickering(adjective, sporadic, irregularity of recurrence)
5
inconsistent(adjective, strange, unstable, unsettled)
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APASmart Define. (2015). fitful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/fitful/thesaurus/synonyms
ChicagoSmart Define. 2015. "fitful thesaurus" https://smartdefine.org/fitful/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, fitful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/fitful/thesaurus/synonyms>.
MLASmart Define. "fitful thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/fitful/thesaurus/synonyms>