Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
 
   
Display options
Show syllables
Show Lookup History
Double-Click Lookup
  Show Spanish support
 
Pronunciation
Wordsmyth
  Phonics
  IPA
 
Entry formats
Standard
  Classic
 
Lookup History
spontaneous

spon·ta·ne·ous

spontaneous

 
pronunciation:
span teI ni s
part of speech: adjective
definition 1: happening freely or done by impulse; not forced.
She reacted to news of the disaster with spontaneous generosity.His smile in the photograph doesn't appear spontaneous.
synonyms:
impulsive, natural, unpremeditated, voluntary
antonyms:
calculated, constrained, planned, premeditated, prepared
similar words:
ad-lib, candid, extemporaneous, free, impetuous, impromptu, seat-of-the-pants, snap, unforced, unprompted
definition 2: happening without outward forces or causes.
spontaneous regeneration of tissue
similar words:
automatic, ex nihilo, natural, self-acting
definition 3: free, natural, and unconstrained in behavior.
synonyms:
free, natural, unconstrained
antonyms:
constrained, inhibited
similar words:
abandoned, extemporaneous, ingenuous, open, unaffected, unguarded, unstudied, willing
derivations: spontaneously (adv.), spontaneousness (n.)