impulsive
adjective. tending to act without thought
- abrupt
- ad-lib
- automatic
- careless
- devil-may-care
- emotional
- extemporaneous
- flaky
- gone off deep end
- hasty
- headlong
- hot-and-cold
- impetuous
- instinctive
- intuitive
- involuntary
- jumping the gun
- mad
- offhand
- passionate
- precipitate
- quick
- rash
- spontaneous
- sudden
- swift
- unconsidered
- unexpected
- unmeditated
- unpredictable
- unpremeditated
- unprompted
- up-and-down
- violent
- winging it
instinctive
adjective. reflex, automatic
instinctual
adjective. instinctive
involuntary
adjective. automatic; not done willingly
more extemporaneous
adjective. improvised
- ad hoc
- ad-lib
- automatic
- autoschediastic
- by ear
- casual
- expedient
- extemporary
- extempore
- fake
- free
- immediate
- impromptu
- improv
- improvisatory
- improviso
- informal
- jamming
- made-up
- makeshift
- offhand
- on impulse
- on-the-spot
- snap
- spontaneous
- spur-of-the-moment
- toss off
- toss out
- unplanned
- unpremeditated
- unprepared
- unrehearsed
- unstudied
- winging it
more extemporary
adjective. unrehearsed, improvised
- ad hoc
- ad lib
- at first glance
- automatic
- by ear
- casual
- expedient
- extempore
- free
- immediate
- impromptu
- improv
- improvisatory
- improviso
- informal
- jamming
- made-up
- makeshift
- off the cuff
- off the top of head
- offhand
- on impulse
- on-the-spot
- snap
- spontaneous
- spur-of-the-moment
- taking for ride
- thought out loud
- tossed off
- tossed out
- unplanned
- unpremeditated
- unprepared
- unstudied
- winging it
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.