reduce vs desolate

reduce is not an adjective while desolate is an adjective.

Word	Noun	Adjective	Verb	Adverb
reduce	No	No	Yes	No
desolate	No	Yes	Yes	No

As verbs, desolate is a hyponym of reduce; that is, desolate is a word with a more specific, narrower meaning than reduce:

Other hyponyms of reduce include reduce, scale down, reef, miniaturise, miniaturize, depopulate, downsize, contract.

reduce (adjective)	desolate (adjective)
	crushed by grief
	providing no shelter or sustenance

reduce (verb)	desolate (verb)
take off weight	reduce in population
cut down on; make a reduction in	cause extensive destruction or ruin utterly
narrow or limit	leave someone who needs or counts on you; leave in the lurch
cook until very little liquid is left
to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons
make smaller
reduce in size; reduce physically
make less complex
reduce in scope while retaining essential elements
lessen the strength or flavor of a solution or mixture
be cooked until very little liquid is left
be the essential element
destress and thus weaken a sound when pronouncing it
undergo meiosis
reposition (a broken bone after surgery) back to its normal site
lower in grade or rank or force somebody into an undignified situation
lessen and make more modest
simplify the form of a mathematical equation of expression by substituting one term for another
bring to humbler or weaker state or condition
put down by force or intimidation