feel has 13 distinct synonyms spread across 7 of its 17 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
be conscious of a physical, mental, or emotional state
“My cold is gone--I feel fine today”
have a feeling or perception about oneself in reaction to someone's behavior or attitude
“She felt small and insignificant”
undergo passive experience of
“We felt the effects of inflation”
find by testing or cautious exploration
“He felt his way around the dark room”
produce a certain impression
“It feels nice to be home again”
pass one's hands over the sexual organs of
“He felt the girl in the movie theater”
Synonyms, antonyms and the broader and narrower relations for feel come from Princeton University’s WordNet. Full sources and licences.