Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
overstrung is an adjective meaning "being in a tense state". It carries 2 recorded senses.
being in a tense state
Definitions, synonyms and semantic relations for overstrung come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.