spontaneous
- adjective (adj)
Meaning: impulsive, willing
Synonyms:
ad-lib
automatic
break loose
casual
down
extemporaneous
extempore
free
free spirited
from the hip
impetuous
impromptu
improvised
inevitable
instinctive
involuntary
irresistible
natural
offhand
off-the-cuff
off top of head
simple
unartful
unavoidable
unbidden
uncompelled
unconscious
unconstrained
uncontrived
uncontrolled
unforced
unintentional
unplanned
unpremediated
unprompted
unsophisticated
unstudied
up front
voluntary
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.