Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
nonleaded is an adjective meaning "(of gasoline) not containing tetraethyl lead". It carries one recorded sense.
Definitions, synonyms and semantic relations for nonleaded come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.