prefixes un de dis

prefixes un  de  dis When prefixes un, de, and dis are added to words, the base word does not change: uncover, defrost, discourage. The prefixes un, de, and dis, mean “not” or “the opposite of.” 1.    uncover 2.    defrost 3.    uncomfortable 4.    discourage 5.    disadvantage 6.    unfortunate 7.    unfamiliar 8.    disability 9.    discomfort 10.  deodorant 11.  unemployed 12.  deflate 13.  disbelief 14.  unpredictable 15.  disapprove 16.  disappoint 17.  unpleasant 18.  dehydrated 19.  disqualify 20.  undecided    Challenge Words 21.  unnecessary 22.  disobedient 23.  dehumidifier 24.  disinfectant 25.  disenchanted