percipient vs looker

percipient and looker both are nouns.

Word	Noun	Adjective	Verb	Adverb
percipient	Yes	Yes	No	No
looker	Yes	No	No	No

As nouns, looker is a hyponym of percipient; that is, looker is a word with a more specific, narrower meaning than percipient:

percipient: a person who becomes aware (of things or events) through the senses
looker: a close observer; someone who looks at something (such as an exhibition of some kind)

percipient (noun)	looker (noun)
a person who becomes aware (of things or events) through the senses	a very attractive or seductive looking woman
	a close observer; someone who looks at something (such as an exhibition of some kind)

percipient (adjective)	looker (adjective)
characterized by ease and quickness in perceiving