They have similar meanings, but not so similar as to be synonymous. A mishap is an unfortunate event or misfortune, which might be caused by a person, might be caused by a natural event, or might be caused by anything. A blunder is a terrible mistake; it is always made by a person. Only people are normally thought to blunder, because only we have the intelligence to know better than to do those things which we describe as blunders. If a mouse does something stupid, well, it's just a mouse anyway. So, while a blunder is also a mishap, not all mishaps are blunders.
Yes nonsense is like blunder dumb thing to do
stumble, blunder
blunder, ability, move
No. Blunder is a mistake. Prompt is a cue to a specific action, or to be prompt is to be on time.
error, blooper, blunder, misjudgment, misprint
Ill-fortune, hardship, and pileup.
Synonyms for calamity include misfortune, mishap, tragedy, disaster, or catastrophe.
A blunder is a foolish mistake.
yes a synonym for disapointment is blunder
A synonym for mistake starting with B is blunder (or boo boo).
mess up, blow, ruin, spoil, blunder, blotch, make a mess of, muff
will future =will blunder going to future = going to blunder