crude
rough
sketchy
unintended
unstudied
uncontrived
unsystematically
unmethodical
nonmethodical
nonanalytical
unanalytical
nonrigorous
unrigorous
unprocessed
unrefined
unthorough
unmethodological
unempirically
experimentally
by experimentation
well-made
blindly
nonmethodological
through an experiment
unsystematical
greige
ill-judged
unpurposed
undesigned
unmeticulous
shortsighted
improvident
undeliberate
ill-considered
off the top of one's head
nondeliberate
extemporary
well-laid
slight
ad-lib
off-the-cuff
extempore
offhanded
offhand
advertently
extemporaneous
impromptu
unrehearsed
unexacting
heedfully