UN- significa NO

El prefijo UN- significa NO

Able                               Unable                                 

American                      Un-American             

Answered                      Unanswered              

Avoidable                      Unavoidable                                  

Bearable                       Unbearable

Believable                     Unbelievable

Decided                        Undecided

Equal                            Unequal

Faithful                         Unfaithful

Grateful                        Ungrateful

Happy                           Unhappy

Important                      Unimportant

Interesting                     Uninteresting

Pleasant                         Unpleasant