negative stimulus vs input

negative stimulus and input both are nouns.

Word	Noun	Adjective	Verb	Adverb
negative stimulus	Yes	No	No	No
input	Yes	No	Yes	No

As nouns, input is a hypernym of negative stimulus; that is, input is a word with a broader meaning than negative stimulus:

Other hypernyms of negative stimulus include stimulant, stimulation, stimulus.

negative stimulus (noun)	input (noun)
a stimulus with undesirable consequences	a component of production; something that goes into the production of output
	any stimulating information or event; acts to arouse action
	signal going into an electronic system
	a statement that expresses a personal opinion or belief or adds information

negative stimulus (verb)	input (verb)
	enter (data or a program) into a computer