INDEFATIGABLE

INDEFATIGABLE(adj): never giving up or getting tired of doing something. Synonyms- Inexhaustible, tireless, unflagging, untiring, weariless, energetic, active, conscientious Antonyms- exhaustible, weary, lethargic, fatigued, tired, sluggish, drained Sentence usage- The Techouse Library offers an indefatigable array of services to its beneficiaries. Phrase- tirelessly persistent. Idiom- going the extra mile.