sail through Antonyms

flop not come up to the mark in not make the grade at fail to reach the required standard in flop in not be up to the mark in not make the grade in not make the grade on not meet the requirements of not meet the standard of not pass muster in not come up to scratch in be unsuccessful in flunk plough fall flat fall through bite the dust dip out not come up to scratch not make the grade not pass fail in not reach the standard in