Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
approximative is an adjective meaning "not quite exact or correct". It carries one recorded sense.
not quite exact or correct
“the approximate time was 10 o'clock”
“a rough guess”
“a ballpark estimate”
Definitions, synonyms and semantic relations for approximative come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.