Synonyms for Guesstimate:

• adv.

  •virtually (adverb)
  • in effect,
  • in the ballpark,
  • implicitly,
  • not absolutely,
  • morally,
  • give or take a little,
  • in the neighborhood,
  • as good as,
  • fundamentally,
  • in essence,
  • in all but name,
  • basically,
  • not actually,
  • for all intents and purposes,
  • practically,
  • in substance,
  • effectually,
  • essentially.

• adv

  •for all practical purposes (adverb)
  • virtually.
  •virtually (adverb)
  • in neighborhood.

• n.

  •
  • binomial,
  • deviation,
  • average,
  • calculation,
  • computational,
  • countdown,
  • algorithm,
  • decimal place,
  • abacus.
  •
  • estimate.
  •cognition (noun)
  • guestimate,
  • guesstimate.
  •conjecture (noun)
  • opinion,
  • Theorizing,
  • hunch,
  • perhaps,
  • presumption,
  • theory,
  • fancy,
  • shot in the dark,
  • conclusion.
  •estimate (noun)
  • measurement,
  • reckoning,
  • measure,
  • projection,
  • point of view,
  • thought,
  • stock,
  • appraisal,
  • judgment,
  • mensuration,
  • valuation,
  • assessment,
  • Gauging,
  • impression,
  • rating,
  • Appraisement,
  • belief,
  • evaluation.
  •guess (noun)
  • induction,
  • presupposition,
  • feeling,
  • shot,
  • suspicion,
  • postulation,
  • stab,
  • divination,
  • assumption,
  • deduction,
  • postulate,
  • view.
  •guesswork (noun)
  • recks,
  • Reck.
  •speculation (noun)
  • cogitation,
  • thinking,
  • meditation,
  • deliberation,
  • studying,
  • reflection,
  • consideration,
  • brainwork,
  • weighing,
  • cerebration,
  • contemplation.
  •supposition (noun)
  • likelihood,
  • Apriorism,
  • doubt,
  • rough guess,
  • condition,
  • premise.
  •surmise (noun)
  • possibility,
  • attempt.

• v.

  •appraise (verb)
  • eye,
  • calculate,
  • valuate,
  • assay,
  • check out,
  • assess,
  • check,
  • audit,
  • adjudge,
  • peg,
  • read,
  • price,
  • value,
  • review,
  • size,
  • rate,
  • figure in,
  • survey,
  • inspect,
  • deem,
  • figure,
  • examine.
  •conjecture (verb)
  • gather,
  • imagine,
  • expect,
  • glean,
  • feel,
  • think,
  • pretend,
  • believe,
  • assume,
  • infer,
  • presume,
  • suspect,
  • conceive,
  • conclude,
  • theorize.
  •estimate (verb)
  • decide,
  • count,
  • class,
  • outline,
  • regard,
  • account,
  • budget,
  • reason,
  • consider,
  • plan,
  • scheme,
  • prophesy,
  • determine,
  • cipher,
  • predict,
  • reckon,
  • tax,
  • cast,
  • sum,
  • deduce,
  • compute,
  • classify,
  • number,
  • rank.
  •evaluate (verb)
  • weigh,
  • grade,
  • criticize.
  •gauge (verb)
  • tally,
  • scale,
  • meter,
  • calibrate,
  • quantify,
  • ascertain,
  • quantitate.
  •guess (verb)
  • pick,
  • hazard,
  • work out,
  • venture,
  • penetrate,
  • select,
  • suggest,
  • divine,
  • solve,
  • chance.
  •speculate (verb)
  • excogitate,
  • cerebrate,
  • muse,
  • dope,
  • head trip,
  • cogitate,
  • reflect,
  • wonder,
  • ruminate,
  • brainstorm,
  • meditate,
  • contemplate,
  • deliberate,
  • study.
  •suppose (verb)
  • admit,
  • take,
  • posit,
  • grant,
  • spark,
  • presuppose,
  • cook up,
  • dare-say,
  • understand,
  • accept,
  • dream.
  •valuate (verb)
  • take the measure of.

• Other synonyms:

  •
  • guessing game.
  •
  • overestimate.
  •
  • est.
  •
  • call.
  •gauge
  • calibrates,
  • quantitated,
  • quantifies,
  • calibrating,
  • metering,
  • metered,
  • quantified,
  • quantitating,
  • calibrated.
  •suppose
  • daresay,
  • supposes.
  •valuate
  • take measure of.
  •Other relevant words:
  • fine,
  • interpret,
  • critique,
  • amount,
  • thereabouts,
  • rudely,
  • quite,
  • look at,
  • measure out,
  • all but,
  • intimately,
  • broadly,
  • extend,
  • coarsely,
  • closely,
  • strictly,
  • roughly,
  • judgement,
  • esteem,
  • award,
  • computation,
  • something like,
  • levy,
  • by,
  • narrowly,
  • balance,
  • thereabout,
  • approximately,
  • tightly,
  • charge,
  • almost,
  • generally,
  • nearly,
  • just about,
  • frequently,
  • not quite,
  • violently,
  • comparatively,
  • relatively,
  • harshly,
  • hold dear,
  • go through,
  • commonly,
  • around,
  • unevenly,
  • analyse,
  • or so,
  • close to,
  • exactly,
  • investigate,
  • ordinarily,
  • upwards of,
  • most,
  • absolutely.

Antonyms for Guesstimate:

• n.

  • approximation
    dissimilarity, difference.
  • conjecture
    reality, proof, fact, certainty, measurement, calculation, truth.
  • estimate
    ignorance.
  • guess
    knowledge.
  • speculation
    information, disdain, abstention.
  • supposition
    trust.

• v.

  • appraise
    neglect, ignore.
  • conjecture
    prove, misunderstand, know, disbelieve, measure, calculate, not believe.
  • estimate
    forget, guess, estimate, disregard, hesitate.
  • gauge
    subtract.
  • guess
    refuse, reject, question, abstain, wonder.
  • hypothesize
    discard.
  • speculate
    dismiss.
  • suppose
    dispute, misconceive, disallow, deny, stop.
  • surmise
    leave.

Hyponym for Guesstimate:

• n.

  • cognition
    estimate, idea, estimation, approximation.

• v.

  • communication
    gauge, guess, estimate, approximate, judge.