noun, verb, slang ·Moderate ·College level

Definitions

Noun

1. 1
   An estimate that is hardly any better than a guess, often because it is based on insufficient or unreliable data. informal

   "Near-synonym: educated guess"

2. 2
   an estimate that combines reasoning with guessing wordnet

Verb

1. 1
   To make a guesstimate. intransitive
2. 2
   estimate based on a calculation wordnet
3. 3
   To make a guesstimate of a specific quantity. transitive

Synonyms

All synonyms

ballpark figureballpark figureeducated guessestimateguessguestimate

Example

More examples

"I guesstimate it'll take at least a week."

Etymology

Blend of guess + estimate.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.