Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
ineffectually is an adverb meaning "in an ineffectual manner". It carries one recorded sense.
in an ineffectual manner
“she tried ineffectually to light the primus, and Thomas came to help her”
Definitions, synonyms and semantic relations for ineffectually come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .