prickly vs spiny

prickly and spiny both are adjectives.

Word	Noun	Adjective	Verb	Adverb
prickly	No	Yes	No	No
spiny	No	Yes	No	No

As adjectives, prickly and spiny are synonyms defined as:

prickly and spiny: having or covered with protective barbs or quills or spines or thorns or setae etc.

Other synonyms of prickly include barbed, barbellate, briary, briery, bristled, bristly, burred, burry, setaceous, setose, thorny.

prickly (adjective)	spiny (adjective)
having or covered with protective barbs or quills or spines or thorns or setae etc.	having spines
very irritable	having or covered with protective barbs or quills or spines or thorns or setae etc.