We found 11 dictionaries that define the word overreacting:

General (9 matching dictionaries)

1. overreacting: Merriam-Webster
2. overreacting: Collins English Dictionary
3. overreacting: Vocabulary.com
4. Overreacting, overreacting: Wordnik
5. overreacting: Cambridge Advanced Learner's Dictionary
6. overreacting: Wiktionary
7. overreacting: Dictionary.com
8. overreacting: Cambridge Essential American English Dictionary
9. overreacting: TheFreeDictionary.com

Medicine (2 matching dictionaries)

10. overreacting: Merriam-Webster Medical Dictionary
11. overreacting: Medical dictionary

(Note: See overreact as well.)

Definitions from Wiktionary (overreact) ▸ verb:  To react too much or too intensely. ▸ Also see overreact Opposite: underreacting, remaining calm, being composed Types: histrionic, hysterical, dramatic, exaggerated, more... Phrases: to believe someone is overreacting, more... ▸ Words similar to overreacting ▸ Usage examples for overreacting ▸ Idioms related to overreacting ▸ Wikipedia articles (New!) ▸ Words that often appear near overreacting ▸ Rhymes of overreacting ▸ Invented words related to overreacting