Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
adventive is an adjective meaning "not native and not fully established; locally or temporarily naturalized". It carries one recorded sense.
not native and not fully established; locally or temporarily naturalized
“an adventive weed”
Definitions, synonyms and semantic relations for adventive come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.