Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
PREFIX UN- IM-
0
%
0
0
0
Back
Restart
known
unknown
Oops!
Okay!
natural
unnatural
Oops!
Okay!
polluted
unpolluted
Oops!
Okay!
possible
impossible
Oops!
Okay!
mature
immature
Oops!
Okay!
forgettable
unforgettable
Oops!
Okay!
important
unimportant
Oops!
Okay!
necessary
unnecessary
Oops!
Okay!
measurable
immeasurable
Oops!
Okay!
affordable
unaffordable
Oops!
Okay!
healthy
unhealthy
Oops!
Okay!
foreseen
unforeseen
Oops!
Okay!
popular
Unpopular
Oops!
Okay!
patient
impatient
Oops!
Okay!
wise
unwise
Oops!
Okay!
polite
impolite
Oops!
Okay!
usual
unusual
Oops!
Okay!
able
unable
Oops!
Okay!
limited
unlimited
Oops!
Okay!
pleasant
unpleasant
Oops!
Okay!
pure
impure
Oops!
Okay!
probable
improbable
Oops!
Okay!
realistic
unrealistic
Oops!
Okay!
comfortable
uncomfortable
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies