[1] : The Collaborative International Dictionary of English v.0.48

invincible \invin"cible\, a. l. invincibilis: cf. f.
   invincible. see in- not, and vincible.
   incapable of being conquered, overcome, or subdued;
   unconquerable; insuperable; as, an invincible army, or
   obstacle.
   1913 webster

         lead forth to battle these my sons
         invincible.                              --milton.
   -- invin"cibleness, n. -- invin"cibly, adv.
   1913 webster
see also:
in- vincible invin"cibleness invin"cibly 

[2] : WordNet (r) 2.0

invincible
     adj : incapable of being overcome or subdued; "an invincible
           army"; "her invincible spirit" syn: unbeatable, unvanquishable
see also:
unbeatable unvanquishable 

[3] : Moby Thesaurus II by Grady Ward, 1.0

148 moby thesaurus words for "invincible":
   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

Invincible >> I Words
Invincible, definition of term: Invincible
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