futile 10 antonyms and opposites of futile. Adjective — Producing no useful result; pointless or doomed to fail. Synonyms for futile useless bootless barren fruitless gainless idle inane ineffectual inefficacious inutile no good otiose pointless profitless purposeless tired unavailing unprofitable unuseful unutilizable vain void Antonyms for futile effectual effective fruitful worthwhile gainful profitable productive purposeful utilizable useful ← Back to the full definition of futile
