nitwitted vs witless

nitwitted and witless both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nitwitted	No	Yes	No	No
witless	No	Yes	No	No

As adjectives, nitwitted and witless are synonyms defined as:

nitwitted and witless: (of especially persons) lacking sense or understanding or judgment

Other synonyms of nitwitted include senseless, soft-witted.

nitwitted (adjective)	witless (adjective)
(of especially persons) lacking sense or understanding or judgment	(used as complement) to the utmost degree
	(of especially persons) lacking sense or understanding or judgment