An estimate or calculation made without precise data, blending guessing and estimating.
Variant or alternate spelling of 'guesstimate,' a 20th-century portmanteau of 'guess' and 'estimate,' sometimes written as one word or with 'guest' rather than 'gues.'
The variant 'guestimate' (using 'guest' instead of 'guess') shows how words can split into spelling variants—while 'guesstimate' became the standard, some speakers created or adopted 'guestimate,' demonstrating that portmanteau formation isn't always a perfectly unified process.
Complete word intelligence in one call. Free tier — 50 lookups/day.