regular vs lax

regular is a noun but lax is not a noun.

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

regular (noun)	lax (noun)
a garment size for persons of average height and weight
a regular patron
a dependable follower (especially in party politics)
a soldier in the regular army

regular (adjective)	lax (adjective)
in accordance with fixed order or procedure or principle	lacking in firmness or tension; not taut
(of solids) having clear dimensions that can be measured; volume can be determined with a suitable geometric formula	pronounced with muscles of the tongue and jaw relatively relaxed (e.g., the vowel sound in `bet')
(used of the military) belonging to or engaged in by legitimate army forces	lacking in rigor or strictness
not constipated	emptying easily or excessively
relating to a person who does something regularly
officially full-time
not deviating from what is normal
regularly scheduled for fixed times
conforming to a standard or pattern
occurring at fixed intervals
symmetrically arranged
often used as intensifiers
in accord with regular practice or procedure