in- (ig-, il-, im-, ir-). (Latin: not, without; used as a prefix).This in- becomes i- before gn; il- before l; im- before b and m; and ir- before r. Don't confuse this in- with another in-, that means "in, within," etc.ignorance: 
illegal: 
illiterate: 
imbalance: 
immaculate: 
immature: 
immovable: 
improbable: 
inaccurate: 
inactive: 
incorrect: 
irrational: 
irregular: 
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