indefectible

being entirely without fault or flaw the indefectible logic of the polemist's arguments Synonyms absolute, faultless, flawless, ideal, immaculate, impeccable, perfect, irreproachable, letter-perfect, picture-book, picture-perfect, seamless, unblemishedRelated Words consummate, expert, masterly; classic, dandy, excellent, fabulous, fine, first-class, first-rate, grand, great, marvelous (or marvellous), prime, superb, superior, superlative, terrific, top, top-notch, unsurpassed; completed, finished, perfected, polished; complete, entire, intact, whole; mint, unbruised, undamaged, unimpaired, uninjured, unmarred, unspoiled; exceptional, fancy, high-grade, special; airtight, bulletproof; accurate, correct, exact, precise; inerrant, infallible, unerring, unfailingNear Antonyms deficient, inadequate, incomplete, insufficient, wanting; unfinished, unpolished; fallible; blemished, blighted, broken, damaged, defaced, disfigured, impaired, injured, malformed, marred, misshapen, spoiled, vitiated; atrocious, execrable, wretched; imprecise, inaccurate, incorrect, inexact, wrongAntonyms amiss, bad, censurable, defective, faulty, flawed, imperfect, reproachable