We found 28 dictionaries that define the word hyperactive:

General (22 matching dictionaries)

1. hyperactive: Merriam-Webster
2. hyperactive: Oxford Learner's Dictionaries
3. hyperactive: American Heritage Dictionary of the English Language
4. hyperactive: Collins English Dictionary
5. hyperactive: Vocabulary.com
6. Hyperactive, hyperactive: Wordnik
7. hyperactive: Cambridge Advanced Learner's Dictionary
8. hyperactive: Wiktionary
9. hyperactive: Webster's New World College Dictionary, 4th Ed.
10. hyperactive: The Wordsmyth English Dictionary-Thesaurus
11. hyperactive: Infoplease Dictionary
12. hyperactive: Dictionary.com
13. hyperactive: Cambridge Essential American English Dictionary
14. Hyperactive, Hyperactive: Wikipedia, the Free Encyclopedia
15. hyperactive: Rhymezone
16. hyperactive: AllWords.com Multi-Lingual Dictionary
17. hyperactive: FreeDictionary.org
18. hyperactive: Mnemonic Dictionary
19. hyperactive: TheFreeDictionary.com
20. hyperactive: Longman Dictionary of Contemporary English

Art (1 matching dictionary)

21. hyperactive: ArtLex Lexicon of Visual Art Terminology

Computing (1 matching dictionary)

22. hyperactive: Encyclopedia

Medicine (3 matching dictionaries)

23. hyperactive: Merriam-Webster Medical Dictionary
24. National MCH Center for Child Death Review (No longer online)
25. hyperactive: Medical dictionary

Slang (1 matching dictionary)

26. hyperactive: Urban Dictionary

Definitions from Wiktionary ( ) ▸ adjective:  having an increased state of activity ▸ adjective:  having attention deficit disorder (no longer used by the scientific community) Similar: overactive, active, hyper, hyperactivated, hyperreactive, hyperaroused, overexcitable, hyperexcitable, hyperanimated, hyperfunctional, more... Opposite: hypoactive, lethargic, sluggish, sluggishness Types: fidgety, restless, impulsive, distractible, attention deficit, more... Phrases: hyperactive child syndrome, opposite of hyperactive, hyperactive mind, hyperactive person, more... Colors:     neon green,     electric blue,     hot pink,     bright yellow,     lime green, more... ▸ Words similar to hyperactive ▸ Usage examples for hyperactive ▸ Idioms related to hyperactive ▸ Wikipedia articles (New!) ▸ Popular nouns described by hyperactive ▸ Words that often appear near hyperactive ▸ Rhymes of hyperactive ▸ Invented words related to hyperactive