futile ineffectual otiose unavailing
futile%5:00:00:useless:00 ineffectual%5:00:00:useless:00 otiose%5:00:00:useless:00 unavailing%5:00:00:useless:00
brezploden jalov neuspešen neučinkovit
producing no result or effect
a futile effort the therapy was ineffectual an otiose undertaking an unavailing attempt