IPA: /ˈpɔːrtrɪtɪst/
KK: /ˈpɔrtrɪtɪst/
A person who creates portraits, typically through painting or photography.
The portraitist captured the essence of her subject in a beautiful painting.
Portraitist → It is formed from "portrait" (from Old French *portrait*, meaning a likeness or representation) and "-ist" (meaning a person who practices or is concerned with something). A portraitist is a person who creates likenesses or representations of others, typically in art.
Think of a 'likeness' ('portrait') created by a 'person' ('-ist') — that’s what a portraitist does.
No commonly confused words.