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