guesstimate
Ballpark figure, informally
A guesstimate is an estimate based partly on guesswork—a rough calculation where hard data is incomplete or unavailable.
The word blends guess and estimate, capturing that middle ground between wild speculation and precise measurement: I'd guesstimate we need about fifty chairs for the event.
As a verb, to guesstimate is to make such a calculation.
Sports venue or estimate
- roughUneven in surface
- back-of-the-envelopeRoughly calculated, informal
- rangeExtent of variation
- inexactLacking full accuracy
imprecise · broad · vague · loose · tentative · approximative · eyeball · spitball
Unproven theorizing or risky investment
- guessworkConclusions drawn without proof
- hunchUnproven inner sense
- intuitionInstinctive immediate understanding
- conjectureGuess from limited facts
probability · risk · chance · variability · unpredictability · hedging · doubt · ambiguity
Prediction of future conditions
- projectionSomething that extends outward
- anticipationState of awaiting something
- prognosisPredicted disease course
- scenarioPostulated event sequence
planning · extrapolation · outlook · modeling · what-if · hypothesis · forward-looking · speculative
Methodical study of parts
- expertiseSkill from extensive practice
- knowledgeUnderstood facts and skills
- calculationMathematical problem-solving process
- assessmentFormal evaluation of worth
evaluation · judgment · reasoning · inference · deduction · acumen · informed · data-driven
ballpark
Sports venue or estimate
- roughUneven in surface
- back-of-the-envelopeRoughly calculated, informal
- rangeExtent of variation
inexact · imprecise · broad · vague · loose · tentative · approximative · eyeball · spitball · rough-cut
speculation
Unproven theorizing or risky investment
- guessworkConclusions drawn without proof
- hunchUnproven inner sense
- intuitionInstinctive immediate understanding
conjecture · probability · risk · chance · variability · unpredictability · hedging · doubt · ambiguity · imprecision
forecast
Prediction of future conditions
- projectionSomething that extends outward
- anticipationState of awaiting something
- prognosisPredicted disease course
scenario · planning · extrapolation · outlook · modeling · what-if · hypothesis · forward-looking · speculative · preliminary
analysis
Methodical study of parts
- expertiseSkill from extensive practice
- knowledgeUnderstood facts and skills
- calculationMathematical problem-solving process
assessment · evaluation · judgment · reasoning · inference · deduction · acumen · informed · data-driven · calibrated
- estimatesballpark, ballpark figure, approximation, rough calculation, ballparking
- guessesconjecture, supposition, speculation, surmise, guesswork
- guessingprediction, hypothesis, conjecture, speculation, hunch
- Imprecisevague, fuzzy, rough, hazy, murky
- portmanteausbrunch, smog, motel, spork, chortle
- approximationsabout, approximately, around, roughly, almost
guesstimatefact
Verifiable piece of information
known quantity · evidence · hard evidence · certainty · statistical analysis