futile Antonyms

effectual fruitful effective practicable utile useful tiptop thankful successful substantial populated potent sleeved significant profitable productive preeminent smart worth the effort valuable highly successful financially manageable as sharp as a needle worth it prizewinning supportive akamai meaningful applaudable wow helpfulness worthy worthwhile wonderful viable peopled pearl compassable brilliant beneficial awesome attractive attainable amazing advantageous advanced admirable achievable ace accomplishable