feckless Antonyms

effective efficient careful purposeful responsible useful meaningful pearl operant nugget manciple labor-saving invincible important careful with money efficacious effectual powerful preservative chintzy wow eager beaver close-fisted strong sensible supportive penny-wise once bitten twice shy profitable aspiring towards economical avid austere aspiring aspirant ascetic ardent anxious animated ambitious actual active abstinent budding canny cautious earnest eager driven discreet