Synonyms|317Antonyms|72|Broader|3Narrower|4Related|494
7
irregular
4
aperiodic
3
non-punctual
2
continual
2
incessant
2
noncyclic
2
perpetual
1
constant
1
continuous
1
ceaseless
1
episodic
1
erratic
1
interminable
1
intermittent
1
lasting
1
nonoscillatory
1
nonperiodic
1
nonstop
1
normal
1
permanent
For more, visit Periodic on Power Thesaurus
11 years ago|773 views|share |citing 
APASmart Define. (2015). periodic thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/periodic/thesaurus/antonyms
ChicagoSmart Define. 2015. "periodic thesaurus" https://smartdefine.org/periodic/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2015, periodic thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/periodic/thesaurus/antonyms>.
MLASmart Define. "periodic thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/periodic/thesaurus/antonyms>