senseless vs otiose

senseless and otiose both are adjectives.

Word	Noun	Adjective	Verb	Adverb
senseless	No	Yes	No	No
otiose	No	Yes	No	No

As adjectives, senseless and otiose are synonyms defined as:

senseless and otiose: serving no useful purpose; having no excuse for being

Other synonyms of senseless include pointless, purposeless, superfluous, wasted.

senseless (adjective)	otiose (adjective)
(of especially persons) lacking sense or understanding or judgment	disinclined to work or exertion
unresponsive to stimulation	producing no result or effect
not marked by the use of reason	serving no useful purpose; having no excuse for being
serving no useful purpose; having no excuse for being