Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unpowered is an adjective meaning "not having or using power". It carries one recorded sense.
not having or using power
“an autogiro is supported in flight by unpowered rotating wings”
Definitions, synonyms and semantic relations for unpowered come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .