i Register
In some senses, mishap is marked as archaic. Watch for register when choosing this word.
ADJ
serious | minor, slight
QUANT
series
A whole series of mishaps delayed the wedding, from the florist losing the flowers to the photographer's camera breaking.
VERB + MISHAP
have, suffer
During the school trip, two students suffered a minor mishap when they got separated from the group.
avoid, prevent
PREP
without ~
The wedding ceremony went without mishap despite the unexpected rain.