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.
  •certain (adjective)
  • inarguable,
  • incontestable,
  • unassailable,
  • undisputable,
  • absolute.

• n.

  •
  • responsible,
  • reputable,
  • sound.
  •
  • secure,
  • ideal,
  • sure-fire.
  •infallible (noun)
  • inerrable,
  • foolproof,
  • unerring.

• Other synonyms:

  •
  • ideally,
  • flawless,
  • immaculate.
  •
  • perfectly,
  • reliable.
  •
  • model.
  •Other relevant words:
  • effective,
  • efficient,
  • agreeable,
  • scientific,
  • dependable,
  • chaste,
  • trustworthy,
  • believable,
  • assuredly,
  • bound,
  • raid,
  • true,
  • effectual,
  • handy,
  • undoubtedly,
  • confidence,
  • defectless,
  • efficacious,
  • direct,
  • trespasser,
  • undeviating,
  • Indefectible,
  • intruder,
  • conviction,
  • apodictic,
  • exact,
  • nice,
  • microscopic,
  • sinless,
  • surefire,
  • doubtless,
  • acceptable,
  • oracular,
  • faithful,
  • perfect,
  • incontrovertible,
  • erupt,
  • trusty,
  • warranted,
  • unflawed,
  • sureness,
  • surety,
  • satisfying,
  • incursion,
  • unbeatable,
  • correct,
  • invasion,
  • unmixed,
  • pure,
  • certainly,
  • attack,
  • subtle,
  • peerless,
  • Taintless,
  • unadulterated,
  • ignite,
  • religious,
  • credible,
  • conscientious,
  • useful,
  • requisite,
  • unavoidable,
  • fact,
  • obtrude,
  • irrupt,
  • irreproachable,
  • authoritative,
  • fine,
  • right,
  • helpful,
  • unimpeachable,
  • staunch,
  • constant,
  • foray,
  • even,
  • assault,
  • trusted,
  • uncontaminated,
  • intrusiveness,
  • principled,
  • tried and true,
  • tried,
  • pinpoint,
  • spotless,
  • mathematical,
  • delicate,
  • inroad,
  • break,
  • influx,
  • faultless,
  • confident,
  • inevitable,
  • explode,
  • alright,
  • square,
  • cocksure,
  • untainted,
  • undoubted,
  • punctilious,
  • honourable,
  • detonate,
  • predictable,
  • Indefective,
  • stable,
  • omniscient,
  • unchangeable,
  • reality,
  • honest,
  • unquestionable,
  • Undeceivable,
  • interloper,
  • intrude,
  • descent,
  • needed,
  • unblemished,
  • just right,
  • precise,
  • security,
  • errorless,
  • rigorous,
  • severe,
  • stainless,
  • strict,
  • needful,
  • unspotted,
  • firm,
  • refined,
  • burst,
  • satisfactory,
  • assured,
  • rigid,
  • invade,
  • certitude,
  • definite,
  • safe,
  • certainty,
  • admittedly,
  • guaranteed,
  • close,
  • trust,
  • assurance,
  • express.

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.