irregular vs regular

irregular and regular both are nouns.

Word	Noun	Adjective	Verb	Adverb
irregular	Yes	Yes	No	No
regular	Yes	Yes	No	No

irregular (noun)	regular (noun)
merchandise that has imperfections; usually sold at a reduced price without the brand name	a garment size for persons of average height and weight
a member of an irregular armed force that fights a stronger force by sabotage and harassment	a regular patron
	a dependable follower (especially in party politics)
	a soldier in the regular army

irregular (adjective)	regular (adjective)
contrary to rule or accepted order or general practice	in accordance with fixed order or procedure or principle
(of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement	(of solids) having clear dimensions that can be measured; volume can be determined with a suitable geometric formula
(used of the military) not belonging to or engaged in by regular army forces	(used of the military) belonging to or engaged in by legitimate army forces
deviating from normal expectations; somewhat odd, strange, or abnormal	not constipated
failing to meet a standard of manufacture due to an imperfection	relating to a person who does something regularly
lacking continuity or regularity	officially full-time
not occurring at a regular rate or fixed intervals	not deviating from what is normal
independent in behavior or thought	regularly scheduled for fixed times
(of a surface or shape); not level or flat or symmetrical	conforming to a standard or pattern
	occurring at fixed intervals
	symmetrically arranged
	often used as intensifiers
	in accord with regular practice or procedure