Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
over-refine is a verb meaning "refine too much or with excess of subtlety". It carries one recorded sense.
refine too much or with excess of subtlety
“He is overrefining this matter”
Definitions, synonyms and semantic relations for over-refine come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.