setback What is the Definition of setback?Noun:an unfortunate happening that hinders or impedes; something that is thwarting or frustrating Other meanings of setback (synonyms, cognates). ENRU setback неудача Frequently viewed: listen meaningtense meaningdefinition of segmentapproximate in a sentencedefinition of tentdeliver in a sentencealphabet meaningstop meaningcontinuous definitionfrequent meaningtriple meaningnotebook definition A B C D E F G H I J K L M N O P Q R S T U V W X Y Z