at first glance
ADJECTIVE
extemporaneous/extemporary
Synonyms
WEAK
ad hoc
ad lib
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
Antonyms
ADVERB
superficially
Synonyms
Antonyms
WEAK
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.