stunner vs looker

stunner and looker both are nouns.

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

As nouns, stunner and looker are synonyms defined as:

Other synonyms of stunner include beauty, dish, knockout, lulu, mantrap, peach, ravisher, smasher, sweetheart.

stunner (noun)	looker (noun)
an unexpected and amazing event	a very attractive or seductive looking woman
a very attractive or seductive looking woman	a close observer; someone who looks at something (such as an exhibition of some kind)