Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun slip-up
1 sense of slip-up
Sense 1
slip, slip-up, miscue, parapraxis -- (a minor inadvertent mistake usually observed in speech or writing or in small accidents or memory lapses etc.)
=> mistake, error, fault -- (a wrong action attributable to bad judgment or ignorance or inattention; "he made a bad mistake"; "she was quick to point out my errors"; "I could understand his English in spite of his grammatical faults")
Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb slip-up
1 sense of slip up
Sense 1
stumble, slip up, trip up -- (make an error; "She slipped up and revealed the name")
=> err, mistake, slip -- (to make a mistake or be incorrect)