overestimate
1 of 2verb
over·es·ti·mate ˌō-vər-ˈe-stə-ˌmāt 
overestimated; overestimating
transitive verb
: to estimate or value (someone or something) too highly
… the senator had been so responsible about his potential tax liabilities that he had substantially overestimated what he owed the government.
David Burnham
David Burnham… our habit of overestimating our knowledge and underestimating our ignorance … David A. Shaywitz
David A. ShaywitzThe emotional power of this reunion can't be overestimated. Joe Klein
Joe Klein"I mean that I am afraid I overestimated him. I don't think that he is a painter of the first rank." Henry James
Henry Jamesoverestimate
2 of 2noun
over·es·ti·mate ˌō-vər-ˈe-stə-mət
plural overestimates
: an estimate that is too high
overestimates of the company's future profits
Diamond still attacks the growth projections that the utilities have put forward, arguing that the … figures were overestimates … Norman Boucher
Norman Boucher
Synonyms
Verb
- overrate
- overvalue
See all Synonyms & Antonyms 
Word History
First Known Use
Verb
1797, in the meaning defined above
Noun
1828, in the meaning defined above
Kids Definition
overestimate
verb
over·es·ti·mate
ˌō-vər-ˈe-stə-ˌmāt
overestimated; overestimating
: to estimate too highly
I overestimated the number of guests.
overestimates
verb
as in values
to place too high a value on the contractors overestimated their ability to do the work on such short notice Synonyms & Similar Words
Relevance
- values
- overvalues
- overrates
- appreciates
- admires
- respects
- regards
- reveres
- cherishes
- treasures
- prizes
- reverences
- esteems
- worships
- idolizes
- adores
- venerates
Antonyms & Near Antonyms
- underestimates
- minimizes
- underrates
- undervalues
- belittles
- disparages
- disdains
- decries
- depreciates
- despises
- scorns
- abhors
- detests
- loathes
- soft-pedals
- abominates
- plays down