slow down vs vegetate

slow down and vegetate both are verbs.

Word	Noun	Adjective	Verb	Adverb
slow down	No	No	Yes	No
vegetate	No	No	Yes	No

As verbs, vegetate is a hyponym of slow down; that is, vegetate is a word with a more specific, narrower meaning than slow down:

Other hyponyms of slow down include veg out, sit back, take it easy.

slow down (verb)	vegetate (verb)
become less tense, rest, or take one's ease	engage in passive relaxation
lose velocity; move more slowly	propagate asexually
become slow or slower	grow like a plant
reduce the speed of	produce vegetation
cause to proceed more slowly	establish vegetation on
	grow or spread abnormally
	lead a passive existence without using one's body or mind