Definition for Ascertain:

• find out, learn, or determine with certainty, usually by making an inquiry or other effort; " I want to see whether she speaks French"; " See whether it works"; " find out if he speaks Russian"; " Check whether the train leaves on time"

Synonyms for Ascertain:

• n.

  •
  • uncover,
  • gather.
  •ascertain (noun)
  • ensure,
  • see,
  • see to it,
  • assure,
  • find,
  • determine,
  • check,
  • find out,
  • control,
  • insure.

• v.

  •ascertain (verb)
  • certify,
  • find out,
  • assure,
  • verify,
  • substantiate,
  • establish,
  • check,
  • demonstrate,
  • confirm,
  • prove,
  • audit,
  • determine.
  •communication (verb)
  • find,
  • watch,
  • determine,
  • learn,
  • check,
  • see,
  • find out.
  •make sure (verb)
  • determine,
  • eyeball,
  • size up,
  • look-see,
  • learn the ropes,
  • find out,
  • learn,
  • pick up on,
  • fix,
  • make certain,
  • verify,
  • make sure,
  • get down pat,
  • get it down,
  • establish,
  • divine,
  • check,
  • identify,
  • check up on,
  • see,
  • read,
  • get the hang of,
  • size,
  • confirm,
  • get hold of,
  • discover,
  • dig,
  • catch on,
  • settle,
  • eye,
  • tell,
  • peg,
  • double-check,
  • check out.
  •prove (verb)
  • demonstrate,
  • verify,
  • confirm,
  • establish,
  • certify,
  • prove,
  • determine.

• Other synonyms:

  •
  • draw,
  • smoke out,
  • calculate,
  • source,
  • retrace,
  • unlock,
  • extract,
  • get at,
  • unearth,
  • elicit,
  • assume,
  • uncover,
  • trace.
  •
  • sort out,
  • discern.
  •
  • abstract.
  •discover
  • detect,
  • light upon,
  • pick up on,
  • get wind of.
  •distinguish
  • individualize,
  • mark off,
  • sort out.
  •ferret out
  • hunt down,
  • root out,
  • search out.
  •gauge
  • gauge,
  • calibrate.
  •get at
  • get hold of.
  •hear
  • be advised,
  • be informed.
  •see
  • get the hang of.
  •Other relevant words:
  • completely,
  • dig up,
  • definition,
  • with difficulty,
  • meet,
  • detect,
  • experience,
  • bring to light,
  • multitude,
  • doubtless,
  • make good,
  • infer,
  • break,
  • clear up,
  • roughly,
  • by all means,
  • get word,
  • insure,
  • approximately,
  • stop,
  • square up,
  • approximate,
  • inquire,
  • extract,
  • feel,
  • catch on,
  • rely upon,
  • fathom,
  • retrace,
  • check out,
  • specially,
  • become acquainted with,
  • seriously,
  • decision,
  • statistics,
  • light upon,
  • predict,
  • come up with,
  • become aware of,
  • bump,
  • regard,
  • affirmer,
  • track,
  • check off,
  • elicit,
  • keep in line,
  • hold good,
  • natural,
  • peg,
  • with regard to,
  • look out,
  • learn,
  • underwrite,
  • light on,
  • in fact,
  • convince,
  • duly,
  • decidedly,
  • specify,
  • read,
  • definiteness,
  • personal,
  • get hold,
  • size,
  • insured,
  • get a line,
  • emphatically,
  • observe,
  • originally,
  • add up,
  • apprehend,
  • entirely,
  • estimate,
  • check up on,
  • certainly,
  • arrest,
  • larn,
  • nail down,
  • take,
  • recover,
  • retard,
  • guarantee,
  • severely,
  • reveal,
  • Hardily,
  • clinch,
  • catch sight of,
  • eye,
  • assure,
  • private,
  • float,
  • figure,
  • perfectly,
  • regain,
  • disclose,
  • obtain,
  • square off,
  • find,
  • accurate,
  • retrieve,
  • show,
  • probe,
  • operate,
  • know,
  • unwillingly,
  • watch over,
  • certainty,
  • expressly,
  • document,
  • surely,
  • acquire,
  • be advised,
  • hardly,
  • clearly,
  • calculate,
  • visualise,
  • sound,
  • seek,
  • incur,
  • thoroughly,
  • actual,
  • indisputably,
  • undergo,
  • accurately,
  • fancy,
  • distinctly,
  • plumb,
  • rhythm,
  • get the hang of,
  • harshly,
  • search,
  • rather,
  • quite,
  • witness,
  • imagine,
  • prophesy,
  • rate,
  • sure,
  • fresh,
  • correctly,
  • in any case,
  • investigate,
  • recognize,
  • assertion,
  • flatly,
  • innocent,
  • hold,
  • hold water,
  • easily,
  • divine,
  • undeniably,
  • inspect,
  • realise,
  • lot,
  • you said it,
  • control,
  • follow,
  • obviously,
  • interpret,
  • apt,
  • detection,
  • very,
  • foresee,
  • absolutely,
  • discover,
  • be told,
  • conclusion,
  • query,
  • locate,
  • correspond,
  • assonance,
  • have a case,
  • penetrate,
  • decide,
  • survey,
  • appreciate,
  • appraise,
  • undoubtedly,
  • gage,
  • consider,
  • lightly,
  • arrive at,
  • hunt down,
  • make sure of,
  • absolute,
  • cinch,
  • mark,
  • anyway,
  • scarcely,
  • precisely,
  • foretell,
  • escort,
  • tumble,
  • come up,
  • weigh,
  • discriminate,
  • hold in,
  • sort out,
  • interrogate,
  • ferret out,
  • judge,
  • individualize,
  • pass inspection,
  • differentiate,
  • catch out,
  • trace,
  • look on,
  • get wind of,
  • unearth,
  • gain knowledge,
  • get down cold,
  • rank,
  • assume,
  • point to,
  • affirmativeness,
  • agree,
  • take-in,
  • meet with,
  • proper,
  • decisively,
  • chance upon,
  • explicitly,
  • predicative,
  • learn the ropes,
  • inevitably,
  • testing,
  • work out,
  • rule,
  • grasp,
  • finger,
  • regularly,
  • conclude,
  • search out,
  • come together,
  • assertive,
  • ensure,
  • confidently,
  • exactly,
  • espy,
  • eyeball,
  • of course,
  • reckon,
  • train,
  • Keep hold,
  • question,
  • actually,
  • retain,
  • uncover,
  • make sure,
  • visualize,
  • curb,
  • turn back,
  • quantify,
  • be sure,
  • decipher,
  • affirm,
  • picture,
  • set at rest,
  • evidently,
  • validate,
  • Stablish,
  • confidential,
  • admittedly,
  • fasten,
  • see to it,
  • moderate,
  • without doubt,
  • forecast,
  • rumble,
  • resolution,
  • come across,
  • strain,
  • get at,
  • study,
  • provide for,
  • watch,
  • value,
  • really,
  • convince oneself,
  • authentically,
  • source,
  • affirmation,
  • spot,
  • reassure,
  • fit,
  • decent,
  • number,
  • draw,
  • deduce,
  • Suss Out,
  • make out,
  • admeasure,
  • smoke out,
  • tick off,
  • check over,
  • settle,
  • glean,
  • hunt up,
  • discern,
  • get wind,
  • go through,
  • agreeable,
  • secure,
  • deem,
  • just now,
  • guileless,
  • for sure,
  • understand,
  • comprehend,
  • watch out,
  • contemplate,
  • definite,
  • barely,
  • go over,
  • calibrate,
  • teach,
  • for certain,
  • look,
  • size up,
  • attend,
  • compute,
  • faultless,
  • take note,
  • get down pat,
  • factually,
  • dig,
  • set,
  • assuredly,
  • Certes,
  • descry,
  • track down,
  • look-see,
  • due,
  • run across,
  • make a decision,
  • tell,
  • count,
  • legitimately,
  • evaluate,
  • positively,
  • genuinely,
  • good,
  • unlock,
  • search for,
  • tumble to,
  • make certain,
  • ask,
  • join,
  • securely,
  • secret,
  • rightly,
  • happen,
  • check into,
  • grudgingly,
  • envision,
  • delve into,
  • naturally,
  • Wis,
  • hit upon,
  • learn about,
  • take care,
  • resolve,
  • you bet,
  • ran into,
  • receive,
  • firmly,
  • assurance,
  • determination,
  • hear,
  • never,
  • Crambo,
  • fix,
  • get,
  • perceive,
  • draw a conclusion,
  • get hold of,
  • hold back,
  • clandestine,
  • definitely,
  • turn up,
  • shape,
  • view,
  • identify,
  • in truth,
  • abstract,
  • image,
  • incontestably,
  • certain,
  • decorous,
  • pure,
  • figure out,
  • Definitively,
  • catch,
  • unquestionably,
  • find oneself,
  • find out about,
  • go steady,
  • indeed,
  • be informed,
  • rhyme,
  • define,
  • bring home to,
  • get it down,
  • satisfy,
  • command,
  • without a doubt,
  • figures,
  • Stabilitate,
  • mark off,
  • memorize,
  • note,
  • uniformly,
  • truly,
  • distinguish,
  • conceive of,
  • contain,
  • indubitably,
  • root out,
  • attest,
  • perpetuate,
  • pick up on,
  • foot,
  • construe,
  • gauge,
  • measure,
  • manipulate,
  • no doubt,
  • in reality,
  • verse,
  • only if,
  • screen,
  • gibe,
  • sense,
  • numbers,
  • assess,
  • twig,
  • see,
  • gather,
  • meter.

Antonyms for Ascertain:

• Other antonyms:

  • n. t.
    aid, assist, blanket, cloak, conceal, confuse, cover, curtain, destroy, disprove, disregard, help, hide, ignore, invalidate, look away, lose, mask, mislay, misplace, miss, misunderstand, occult, overlook, screen, shroud, unlearn, unsettle, Misset, blot out.

• v.

  • make sure
    confuse, destroy, unsettle, assist, disprove, neglect, look away, misunderstand, invalidate, ignore, overlook, aid, help, miss.
  • Other antonyms:
    cover, forget, enshroud, mislay, cloak, unlearn, miss, pass over, blanket, curtain, mask, Misset, overlook, veil, hide, lose, blot out, conceal, occult, shroud, screen, ignore, misplace, disregard.