pushover
From Longman Dictionary of Contemporary Englishpushoverpush‧o‧ver /ˈpʊʃˌəʊvə $ -ˌoʊvər/ noun informal → be a pushoverExamples from the Corpuspushover• Angela Brickell had been small and light; a pushover.• Louisiana Tech, a last minute replacement on the schedule, turned out to be no pushover.• At 1,069 feet, it qualifies as my kind of mountain, but it is no pushover.• At 6,536 yards, this is no pushover even for experts.• One thing is for sure, the lady was no pushover.