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.
  •impeccable (adjective)
  • more incorrupt,
  • un-flawed,
  • most apple-pie,
  • more apple pie,
  • un flawed,
  • most note-perfect,
  • in corrupt,
  • a okay,
  • more a okay,
  • more apple-pie,
  • most fleckless,
  • in-corrupt,
  • most aokay,
  • more applepie,
  • most apple pie,
  • un-blemished,
  • more a-okay,
  • noteperfect,
  • in nocent,
  • more fleckless,
  • most note perfect,
  • most applepie,
  • most incorrupt,
  • note perfect,
  • in-nocent,
  • most noteperfect,
  • more noteperfect,
  • more note-perfect,
  • more note perfect,
  • most a-okay,
  • most a okay,
  • more aokay.
  •incontestable (adjective)
  • in contestable,
  • in-contestable.
  •necessary (adjective)
  • more inerrant,
  • more inevasible,
  • in escapable,
  • in-exorable,
  • most inevasible,
  • most unescapable,
  • Returnless,
  • most inerrant,
  • un-avoidable,
  • un escapable,
  • un-escapable,
  • most ineludible,
  • more returnless,
  • un avoidable,
  • in-escapable,
  • in errant,
  • more necessary,
  • in-errant,
  • most returnless,
  • more ineludible,
  • more unescapable.
  •right (adjective)
  • more watertight,
  • more unmistaken,
  • more amen,
  • veridical,
  • un distorted,
  • most undistorted,
  • more undistorted,
  • on money,
  • un mistaken,
  • most watertight,
  • most amen,
  • free error,
  • most unmistaken,
  • un-mistaken,
  • un-distorted.
  •sure (adjective)
  • in disputable,
  • in-disputable.
  •sure-fire (adjective)
  • FAILSAFE.
  •undisputable (adjective)
  • un disputable,
  • un-disputable.
  •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.
  •inerrable (noun)
  • inerrable.
  •infallible (noun)
  • unerring.
  •unerring (noun)
  • fail-safe,
  • irrefutable.

• Other synonyms:

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