Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
profitless is an adjective meaning "without profit or reward". It carries one recorded sense.
without profit or reward
“let us have no part in profitless quarrels”
“How weary, flat, stale, and unprofitable / Seem to me all the uses of this world”
Definitions, synonyms and semantic relations for profitless come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.