unsteady vs spasmodic

unsteady and spasmodic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unsteady	No	Yes	No	No
spasmodic	No	Yes	No	No

unsteady (adjective)	spasmodic (adjective)
subject to change or variation	occurring in spells and often abruptly
not firmly or solidly positioned	affected by involuntary jerky muscular contractions; resembling a spasm