Invincible

Noun

 * 1) Someone or something that cannot be defeated, destroyed or killed.

Antonyms

 * vincible

Adjective

 * 1) Impossible to defeat, destroy or kill.

Synonyms

 * unconquerable

Antonyms

 * conquerable
 * vincible

Adverbs for Invincible
sturdily; stoutly; amazingly; unexpectedly; proudly; notoriously; conspicuously; surprisingly; preposterously; incredibly; genuinely; apparently; evidently; manifestly; curiously; strangely; oddly; fantastically; indomitably; insuperably; doggedly; stubbornly; obstinately; mightily; powerfully; splendidly; magnificently; irresistibly; mysteriously; unbelievably.

Thesaurus
assiduous, beyond compare, beyond comparison, calculable, constant, continuing, deathless, dependable, diligent, dogged, easily first, enduring, facile princeps, faithful, faithworthy, fast, firm, immortal, immutable, impassable, impenetrable, imperishable, impregnable, inalterable, incomparable, incontestable, incorruptible, indefatigable, indelible, indestructible, indomitable, industrious, ineffaceable, ineradicable, inexpugnable, inextinguishable, inimitable, insistent, insuperable, insurmountable, inviolable, invulnerable, irresistible, lasting, loyal, matchless, never-tiring, nonperishable, nulli secundus, obstinate, overpowering, overwhelming, patient, patient as Job, peerless, permanent, perseverant, persevering, persistent, persisting, pertinacious, plodding, plugging, predictable, preoccupied, quenchless, rapt, relentless, reliable, resistless, resolute, second to none, secure, sedulous, single-minded, sleepless, slogging, solid, sound, stable, staunch, steadfast, steady, stubborn, substantial, sui generis, sure, surefire, tenacious, tireless, trustworthy, trusty, unabating, unapproachable, unapproached, unassailable, unattackable, unbeatable, unconquerable, undampable, undaunted, undefeatable, undefeated, undestroyable, undiscouraged, undrooping, undying, unequaled, unexampled, unexcelled, unfailing, unfaltering, unflagging, unflinching, unintermitting, uninterrupted, unique, unmatchable, unmatched, unnodding, unparagoned, unparalleled, unpeered, unquenchable, unrelaxing, unrelenting, unremitting, unrivaled, unsleeping, unstoppable, unsubduable, unsurmountable, unsurpassable, unsurpassed, unswerving, untiring, untouchable, unwavering, unwearied, unwearying, unwinking, unyielding, utterly attentive, weariless, well-founded, well-grounded, without equal, without parallel