Tireless

Adjective

 * 1) Indefatigable, untiring and not yielding to fatigue

Adjective

 * 1) Without a tire (wheel covering); tyreless.

Thesaurus
active, ardent, assiduous, constant, continuing, determined, diligent, dogged, dynamic, enduring, energetic, enthusiastic, faithful, fervent, hard, hardworking, immutable, inalterable, indefatigable, indomitable, industrious, inexhaustible, insistent, invincible, laborious, lasting, lively, loyal, never idle, never-tiring, obstinate, patient, patient as Job, permanent, perseverant, persevering, persistent, persisting, pertinacious, plodding, plugging, preoccupied, rapt, relentless, resolute, sagging, sedulous, single-minded, sleepless, slogging, spirited, stable, staunch, steadfast, steady, strenuous, stubborn, tenacious, unabating, unconquerable, undaunted, undeviating, undiscouraged, undrooping, unfailing, unfaltering, unflagging, unflinching, unintermitting, uninterrupted, unnodding, unrelaxing, unrelenting, unremitting, unsleeping, unsparing, unswerving, untiring, unwavering, unwearied, unwearying, unwinking, utterly attentive, vehement, vigorous, vital, weariless, zealous

Adjective

 * Finnish: ,
 * French:


 * Greek:
 * Macedonian: неуморен, безуморен

Derived terms

 * tirelessness

Anagrams

 * leisters