Not yielding the desired outcome; fruitless:
Not effectual; not producing or not able to produce the desired effect
Without worth or merit; useless, valueless, etc.
Find another word for profitless. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for profitless, like: vain, futile, ineffectual, useless, worthless, fruitless and unproductive.