irregularity vs fluctuation

fluctuation vs irregularity

irregularity and fluctuation both are nouns.

Word	Noun	Adjective	Verb	Adverb
irregularity	Yes	No	No	No
fluctuation	Yes	No	No	No

As nouns, fluctuation is a hyponym of irregularity; that is, fluctuation is a word with a more specific, narrower meaning than irregularity:

irregularity: not characterized by a fixed principle or rate; at irregular intervals
fluctuation: the quality of being unsteady and subject to changes

Other hyponyms of irregularity include inhomogeneity, fitfulness, jerkiness, intermittence, intermittency, wavering, haphazardness, noise, randomness, stochasticity, unevenness, variability, unsteadiness.

irregularity (noun)	fluctuation (noun)
behavior that breaches the rule or etiquette or custom or morality	the quality of being unsteady and subject to changes
not characterized by a fixed principle or rate; at irregular intervals	an instance of change; the rate or magnitude of change
an irregular asymmetry in shape; an irregular spatial pattern	a wave motion
irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis

Difference between irregularity and fluctuation

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