Definition for Infallible:

• in-fal'i-bl, adj. incapable of error: trustworthy: certain.-- ns. INFALL'IBILISM; INFALL'IBILIST; INFALLIBIL'ITY.-- adv. INFALL'IBLY.-- THE DOCTRINE OF INFALLIBILITY in the R.C. Church, since 1870, is that the Pope, when speaking ex cathedrâ, is kept from error in all that regards faith and morals.

Synonyms for Infallible:

• adj.

  •absolute (adjective)
  • positive.
  •accurate (adjective)
  • more unrefuted,
  • un-disputed,
  • un disputed,
  • veracious,
  • un-impeachable,
  • un impeachable,
  • valid,
  • perfect,
  • more valid,
  • un refuted,
  • un-refuted,
  • final,
  • most unrefuted.
  •all (adjective)
  • infallible.
  •certain (adjective)
  • in the bag,
  • undisputable,
  • inarguable,
  • on ice,
  • establishable,
  • incontestable,
  • safest,
  • SAFER,
  • absolute,
  • unassailable,
  • having down pat,
  • evident,
  • confirmable.
  •right (adjective)
  • more undistorted,
  • most watertight,
  • un mistaken,
  • un distorted,
  • free error,
  • un-mistaken,
  • most unmistaken,
  • on money,
  • right,
  • most amen,
  • veridical,
  • more unmistaken,
  • most undistorted,
  • un-distorted,
  • more watertight,
  • more amen.
  •sure (adjective)
  • in disputable,
  • in-disputable.
  •sure-fire (adjective)
  • FAILSAFE,
  • surefire.
  •undisputable (adjective)
  • un disputable,
  • un-disputable.
  •unerring (adjective)
  • unerring,
  • inerrable.
  •unerring, dependable (adjective)
  • effectual,
  • satisfactory,
  • unimpeachable,
  • unbeatable,
  • correct,
  • Undeceivable,
  • omniscient,
  • satisfying,
  • acceptable,
  • handy,
  • agreeable,
  • efficacious,
  • helpful,
  • useful,
  • efficient,
  • effective.
  •unfailing (adjective)
  • never-failing,
  • there,
  • rock solid.

• n.

  •
  • steady,
  • as good as your word,
  • responsible,
  • sound,
  • consistent,
  • reputable.
  •
  • secure,
  • sure-fire,
  • above/beyond reproach,
  • ideal.
  •foolproof (noun)
  • foolproof.
  •unerring (noun)
  • dependable,
  • unquestionable,
  • authoritative,
  • fail-safe,
  • true,
  • faultless,
  • apodictic,
  • irrefutable,
  • incontrovertible,
  • trustworthy,
  • exact.

• Other synonyms:

  •
  • ideally,
  • immaculate,
  • quintessential,
  • flawless.
  •
  • perfectly,
  • reliable.
  •
  • model.

Paraphrases for Infallible:

• Equivalence

  • Adjective
    foolproof, sure-fire.

• Independent

  • Adjective
    perfect.

• Other Related

  • Adjective
    omniscient, faultless, unfailing.

Antonyms for Infallible:

• adj.

  • all
    fallible.
  • unerring, dependable
    erring.
  • Other antonyms:
    flawed, faulty, defective, casual, unnecessary, needless, doubtful, uncertain, useless, questionable, imperfect, contingent, optional, worthless, weak.

Infallible Sentence Examples:

• Their way is the only infallible one.

• Are you in earnest, then, not to be any more a hypocrite and to know the infallible marks of such?