The opposite of common
uncommon
The opposite of fit
unfit
Make a noun from ignorant
ignorance
Make an adjective from nationality
national
Make a verb from relaxation
relax
The opposite of logical
illogical
The opposite of correct
incorrect
Make a noun from hospitable
hospitality
Make an adjective from hero
heroic
Make a verb from deep
deepen
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 obedient
obey
The opposite of valid
invalid
The opposite of scientific
unscientific
Make a noun from voluntary
volunteer
Make anadjective from continent
continental
Make a verb from moisture
moisten
The opposite of inherit
disinherit
The opposite of material
immaterial
Make a noun from furnish
furniture
Make an adjective from jerk
jerky
Make a verb from sharp
sharpen