Synonyms of fruitless

1 Syllable
vain
2 Syllables
pointless, shucker, forlorn, idle, idlest, barren, empty, bootless, thankless, gainless, scrapper
3 Syllables
acarpous, sterile, resultless, forceless, useless, time-wasting, masklike, futile, unfruitful, profitless, slack-spined
4 Syllables
abortive, inutile, uncreative, unusable, nongermane, unavailing, unprolific, sanitized, unnotable, infertile, unsuccessful, nonfunctional, unratified, ineffectual, unusuable, defeasible, unfunctional, unreturned
5 Syllables
invertebrate, uninventive, unavailable, unprofitable, uncultivable, unproductive, unenforceable, ineffective, infertility, anticlimactic, inefficacious