irregular vs strong

irregular is a noun but strong is not a noun.

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

irregular (noun)	strong (noun)
merchandise that has imperfections; usually sold at a reduced price without the brand name
a member of an irregular armed force that fights a stronger force by sabotage and harassment

irregular (adjective)	strong (adjective)
contrary to rule or accepted order or general practice	having strength or power greater than average or expected
(of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement	having a strong physiological or chemical effect
(used of the military) not belonging to or engaged in by regular army forces	being distilled rather than fermented; having a high alcoholic content
deviating from normal expectations; somewhat odd, strange, or abnormal	strong and sure
failing to meet a standard of manufacture due to an imperfection	freshly made or left
lacking continuity or regularity	not faint or feeble
not occurring at a regular rate or fixed intervals	immune to attack; incapable of being tampered with
independent in behavior or thought	of verbs not having standard (or regular) inflection
(of a surface or shape); not level or flat or symmetrical	having or wielding force or authority
	of good quality and condition; solidly built