Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Word Explorer
Children's Dictionary
Help
Help
Help
 
     

un-

 
part of speech: prefix
definition 1: a prefix that means "not."
An unhappy person is a person who is not happy.An unfinished task is a task that is not finished.
definition 2: a prefix that means "back" or "reverse."
To unload a truck is to remove a load from the truck.