- invincible
- invincible, unconquerable, indomitable, impregnable, inexpugnable, unassailable, invulnerable mean proof against attack or defeat. A person or thing is invincible or un-conquerable that presents insuperable difficulties to his or its being overcome or displaced; invincible, however, usually implies a quality or character in the person or thing which makes him or it actually or seemingly incapable of being vanquished; unconquerable implies rather the fact of having successfully resisted all attempts at subdual or mastery{
a resolute, yet not invincible, skepticism— Flew
}{is He still mythologically invincible? If He is bound to take up the Devil's challenge, is He equally bound to win the ensuing battle?— Toynbee
}{he made plan after plan; but each one was discarded because he saw it would encounter invincible selfishness, or invincible self-sacrifice— Deland
}{seems to create unconquerable difficulties in man's life— Salisbury
}{the iron face of those men of empire and unconquerable will, those Caesars and Napoleons— L. P. Smith
}A person or a human quality (as mind, will, or energy) is indomitable that stubbornly and determinedly resists all attempts to gain mastery over or discourage him or it or endures seemingly insuperable difficulties with fortitude until they are overcome{indomitable courage
}{an indomitable will
}{indomitable energy
}{founding colonies ... or exploring in crazy pinnaces the fierce latitudes of the polar seas—they are the same indomitable Godfearing men— Froude
}{two centuries of Roman persistence were required to subdue the indomitable Iberians— H. O. Taylor
}Something material (as a fortress) or intangible (as virtue) is impregnable when it is strong enough or sufficiently guarded to repel all attacks or assaults{there is no such thing as impregnable defense against powerful aggressors who sneak up in the dark and strike without warning— Roosevelt
}{Cato . . . was a fanatic, impregnable to argument, and not to be influenced by temptation— Froude
}{there was always a traitor in the citadel; and after he (or generally she) had surrendered the keys, what was the use of pretending that it was impregnable?—Wharton
}A thing is inexpugnable or unassailable either because it is impregnable or because it offers no point at which it can be attacked or no occasion or reason (as a weakness or a defect) for attacking or impugning{castles were often built at the tops of craggy mountains in the hope that they might be inexpugnable
}{that we are conscious, sentient, evaluating and thinking creatures ... is an inexpugnable fact of existence— Nagel
}{nothing but an unassailable alibi would save them— Stong
}{an argument so logical and convincing that it is unassailable
}A person or thing is invulnerable that cannot be wounded or penetrated by a destructive weapon or piercing instrument{they had lived through the Nazi plague and, having survived, were henceforth invulnerable to its poison— Dean
}{ironclad warships were once believed to be invulnerable
}{how was one to pierce such hidebound complacency? It was invulnerable except to the Grace of God— Mackenzie
}Analogous words: dauntless, undaunted, intrepid (see BRAVE)Contrasted words: conquerable, vanquishable, surmountable, sub-duable (see corresponding verbs at CONQUER)
New Dictionary of Synonyms. 2014.
