superfluous vs senseless

superfluous and senseless both are adjectives.

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

As adjectives, superfluous and senseless are synonyms defined as:

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

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

superfluous (adjective)	senseless (adjective)
more than is needed, desired, or required	(of especially persons) lacking sense or understanding or judgment
serving no useful purpose; having no excuse for being	unresponsive to stimulation
	not marked by the use of reason
	serving no useful purpose; having no excuse for being