Grammar Quiz - Prefixes im and in

Test your prefixes now!
The prefixes im- and in- both indicate a negation or reversal of an action. However, im- is used to signify an immediate or direct negation while in- is used to signify a more indirect or gradual negation. For example, the words "impossible" and "incompatible" both have the same meaning of "not able to be done or accepted together," but the prefixes give the words different implications. "Impossible" implies a complete impossibility, while "incompatible" implies a more SUBTLE or GRADUAL lack of compatibility.