irregularity

As nouns the difference between irregularity and peculiarity

is that irregularity is an instance of being irregular while peculiarity is the quality or state of being peculiar; individuality; singularity.

As nouns the difference between irregularity and unconformity

is that irregularity is (countable) an instance of being irregular while unconformity is (nonstandard) a lack of conformity.

As nouns the difference between irregularity and idiosyncrasy

is that irregularity is (countable) an instance of being irregular while idiosyncrasy is a behavior or way of thinking that is characteristic of a person.

As nouns the difference between irregularity and oddity

is that irregularity is an instance of being irregular while oddity is an odd or strange thing or opinion.

As nouns the difference between deformity and irregularity

is that deformity is the state of being deformed while irregularity is an instance of being irregular.

As nouns the difference between irregularity and aberration

is that irregularity is (countable) an instance of being irregular while aberration is aberration (deviation).

As nouns the difference between irregularity and eccentricity

is that irregularity is (countable) an instance of being irregular while eccentricity is the quality of being eccentric; any eccentric behaviour.

Deviation is a synonym of irregularity.

As nouns the difference between irregularity and deviation

is that irregularity is an instance of being irregular while deviation is the act of deviating; a wandering from the way; variation from the common way, from an established rule, etc.; departure, as from the right course or the path of duty.

As nouns the difference between malformation and irregularity

is that malformation is an abnormal formation while irregularity is (countable) an instance of being irregular.