planless vs aimless

planless and aimless both are adjectives.

Word	Noun	Adjective	Verb	Adverb
planless	No	Yes	No	No
aimless	No	Yes	No	No

As adjectives, planless and aimless are synonyms defined as:

Other synonyms of planless include adrift, afloat, directionless, rudderless, undirected.

planless (adjective)	aimless (adjective)
aimlessly drifting	aimlessly drifting
	continually changing especially as from one abode or occupation to another