Prefix words for dis- and un-

dis-

not, none

disadvantage

an unfavorable situation that is not good.

disagreement

a quarrel; not able to come to an agreement; not of the same opinion

disappoint

to let someone down; to not make someone proud or satisfied

discontinue

to end something; to not use anymore; cease

dismal

no good; depressing; dreary; bleak

disobedient

not following the rules

disorganized

mess; not neat; not able to find things

disposable

not worthy of being kept; easily kept; easily given or thrown away; able to be easily replaced

disrespectful

not polite; rude; not courteous

disturb

to bother or pester; not leaving someone alone

un-

not, none

uncertain

not sure

uncommon

rare; not the usual; remarkable

unconscious

not within thought; not awake

undecided

not yet at the point of making a decision

unexpected

not what someone thought would happen; not predicted

unmistakable

clear; cannot be understood the wrong way; not able to be confused or misunderstood

unnecessary

not required

untidy

messy; not neat; not organized

unwise

not smart

unworthy

not deserving; not having any values