mishap
Synonym discussion
Sense: noun/1
Mishap usually suggests a small, unlucky problem rather than a disaster. An accident can be minor or very serious, so it is the broadest word of the group. A glitch is even smaller, but it is most often used for machines, software, or brief problems in a system. A setback focuses on lost progress: the event matters because it delays a plan. Misfortune is broader and more formal, and it can describe a whole period of bad luck, not just one event. If a cake collapses, a bus ticket is lost, or a trip hits a small problem, mishap is often the most natural choice.
Common collocations
Etymology
Built in Middle English from the prefix mis- ('bad' or 'wrong') and hap, an older word meaning 'chance' or 'luck'. The hap part is related to the idea behind happen and originally pointed to what chance brings.