backfired — Simple past tense and past participle of backfire.
failed — unsuccessful; failed: a totally fail policy.
miscarried — Simple past tense and past participle of miscarry.
fizzled — Simple past tense and past participle of fizzle.
flopped — to fall or plump down suddenly, especially with noise; drop or turn with a sudden bump or thud (sometimes followed by down): The puppy flopped down on the couch.
aborted — Carry out or undergo the abortion of (a fetus).
blundered — a gross, stupid, or careless mistake: That's your second blunder this morning.
exploded — Simple past tense and past participle of explode.
floundered — to struggle with stumbling or plunging movements (usually followed by about, along, on, through, etc.): He saw the child floundering about in the water.
missed — to fail to hit or strike: to miss a target.
slipped — to move, flow, pass, or go smoothly or easily; glide; slide: Water slips off a smooth surface.
