Word Study
unfailing
CIDE DICTIONARY
unfailing, a.
Not failing; not liable to fail; inexhaustible; certain; sure. [1913 Webster]
OXFORD DICTIONARY
unfailing, adj.
1 not failing.
2 not running short.
3 constant.
4 reliable.
1 not failing.
2 not running short.
3 constant.
4 reliable.
Derivative
unfailingly adv. unfailingness n.
THESAURUS
unfailing
abiding, assiduous, calculable, certain, changeless, consistent, constant, continuing, dependable, devoted, diligent, dogged, durable, enduring, faithful, faithworthy, fast, firm, fixed, frozen, immobile, immutable, inalterable, indefatigable, indomitable, industrious, insistent, intact, invariable, invincible, inviolate, lasting, loyal, marble-constant, never-tiring, obstinate, patient, patient as Job, permanent, perpetual, perseverant, persevering, persistent, persisting, pertinacious, plodding, plugging, predictable, preoccupied, quiescent, rapt, relentless, reliable, remaining, resolute, rigid, secure, sedulous, single-minded, sleepless, slogging, solid, sound, stable, static, stationary, staunch, staying, steadfast, steady, stubborn, substantial, sure, surefire, sustained, tenacious, tireless, torpid, true, true-blue, trustworthy, trusty, unabating, unaltered, unchangeable, unchanged, unchanging, unchecked, unconquerable, undaunted, undestroyed, undiscouraged, undrooping, unfading, unfaltering, unflagging, unflinching, unintermitting, uninterrupted, unnodding, unrelaxing, unrelenting, unremitting, unshifting, unsleeping, unswerving, untiring, unvaried, unvarying, unwavering, unwearied, unwearying, unwinking, utterly attentive, weariless, well-founded, well-groundedROGET THESAURUS
unfailing
Permanence
N permanence, stability, quiescence, obstinacy, permanence, persistence, endurance, durability, standing, status quo, maintenance, preservation, conservation, conservation, law of the Medes and Persians, standing dish, stable, persisting, permanent, established, unchanged &c (change), renewed, intact, inviolate, persistent, monotonous, uncheckered, unfailing, undestroyed, unrepealed, unsuppressed, conservative, qualis ab incepto, prescriptive, stationary, in statu quo, for good, finally, at a stand, at a standstill, uti possidetis, without a shadow of turning, esto perpetua, nolumus leges Angliae mutari, j'y suis et j'y ereste.For further exploring for "unfailing" in Webster Dictionary Online