Find a pair of English words each of which can be a noun, verb, adjective, or adverb such that:
- as nouns, adjectives, and adverbs, they're opposite in meaning
- as verbs, they have the same meaning
(I'm pretty sure the answer to this is unique.)
I would say
Plump and Pat
Both share the meaning of "to touch with hands"
Pat means "opportunely, appropriately", while Plump means "with a heavy fall". Not exact opposites, but a heavy fall is never appropriate!
Pat means "a light stroke with the hand" while Plump means "an abrupt plunge". The pain is very different, you see!
Plump means "round, with smooth edges" and Pat means "too simple, unconvincing, rough". Rough and smooth are opposites!