The opposite of common
uncommon
The opposite of perfect
imperfect
Make a noun from ignorant
ignorance
Make an adjective from norm
normal, abnormal
Make a verb from relaxation
relax
The opposite of logical
illogical
The opposite of correct
incorrect
Make a noun from generous
generosity
Make an adjective from hero
heroic
Make a verb from tiring
tire
(tyre - opona (tire am.)
The opposite of mature
immature
The opposite of responsible
irresponsible
Make a noun from disturb
disturbance
Make an adjective from gift
gifted
Make a verb from reliable
rely
The opposite of place
misplace
The opposite of scientific
unscientific
Make a noun from originate
origin, originality
Make an adjective from access
accessible, inaccessible
Make a verb from exclusive
exclude
The opposite of approve
disapprove
The opposite of measurable
immeasurable
Make a noun from instruct
instruction
Make an adjective from education
(un)educated,
educational,
Make a verb from sharp
sharpen