Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
uninventive is an adjective meaning "deficient in originality or creativity; lacking powers of invention". It carries one recorded sense.
deficient in originality or creativity; lacking powers of invention
“a sterile ideology lacking in originality”
“unimaginative development of a musical theme”
“uninspired writing”
Definitions, synonyms and semantic relations for uninventive come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.