never-tiring
61preoccupied — Synonyms and related words: absent, absentminded, absorbed, absorbed in, abstracted, assiduous, bemused, besotted, blind, buried in, buried in thought, castle building, caught up in, constant, contemplating, contemplative, continuing, daydreaming …
62rapt — Synonyms and related words: absent, absentminded, absorbed, abstracted, arrested, assiduous, beatific, bemused, bewitched, blissful, buried in thought, bursting with happiness, captivated, carried away, castle building, caught, charmed, constant …
63resolute — Synonyms and related words: abandoned, adamant, afire, ardent, assiduous, bent, bold, bound, bound and determined, bulldog, bulldoggish, burning, changeless, committed, constant, continuing, dauntless, decided, decisive, dedicated, definite,… …
64single minded — Synonyms and related words: absorbed, absorbed in, adamant, artless, assiduous, bigoted, bluff, blunt, born yesterday, bound, bound and determined, buried in, candid, caught up in, childlike, committed, confiding, constant, contemplating,… …
65stubborn — Synonyms and related words: adamant, adamantine, adherent, adhesive, assiduous, balking, balky, bigoted, bulldogged, bulldoggish, bulldoggy, bulletheaded, bullheaded, cantankerous, cartilaginous, case hardened, chewy, clingy, cohesive, constant,… …
66tenacious — Synonyms and related words: adamant, adherent, adhesive, amylaceous, assiduous, balking, balky, bigoted, bound, bound and determined, bulldogged, bulldoggish, bulldoggy, bulletheaded, bullheaded, cartilaginous, case hardened, chewy, clabbered,… …
67unconquerable — Synonyms and related words: assiduous, constant, continuing, diligent, dogged, enduring, faithful, immutable, impassable, impenetrable, impregnable, inalterable, incontestable, indefatigable, indomitable, industrious, inexpugnable, insistent,… …
68undaunted — Synonyms and related words: assiduous, audacious, bold, constant, continuing, courageous, dauntless, diligent, dogged, enduring, faithful, fearless, immutable, inalterable, indefatigable, indomitable, industrious, insistent, intrepid, invincible …
69unfailing — Synonyms and related words: abiding, assiduous, calculable, certain, changeless, consistent, constant, continuing, dependable, devoted, diligent, dogged, durable, enduring, faithful, faithworthy, fast, firm, fixed, frozen, immobile, immutable,… …
70unflinching — Synonyms and related words: assiduous, balanced, calm, constant, continuing, cool, coolheaded, diligent, dogged, enduring, faithful, fast, fiducial, firm, firm as Gibraltar, immutable, imperturbable, implacable, in equilibrium, inalterable,… …
