We found 6 dictionaries that define the word overestimations:

General (5 matching dictionaries)

1. overestimations: Merriam-Webster
2. overestimations: Collins English Dictionary
3. overestimations: Vocabulary.com
4. overestimations: Wiktionary
5. overestimations: TheFreeDictionary.com

Business (1 matching dictionary)

6. overestimations: Legal dictionary

(Note: See overestimation as well.)

Definitions from Wiktionary (overestimation) ▸ noun:  An excessive estimation. ▸ Also see overestimation Opposite: underestimations, undervaluations, devaluations ▸ Words similar to overestimations ▸ Usage examples for overestimations ▸ Idioms related to overestimations ▸ Wikipedia articles (New!) ▸ Popular adjectives describing overestimations ▸ Words that often appear near overestimations ▸ Rhymes of overestimations ▸ Invented words related to overestimations