irregular
Pronunciation:
/ɪˈɹɛɡjəlɚ/noun
Definitions
A soldier who is not a member of an official military force and, often, does not follow regular army tactics
One who does not regularly attend a venue
adjective
Definitions
Nonstandard; not conforming to rules or expectations
(of a surface) rough
Without symmetry, regularity, or uniformity
(of a polygon) not regular; having sides that are not equal or angles that are not equal