"Seeming ease" refers to something that appears to be easy or effortless but may actually require a lot of skill, effort, or practice behind the scenes. Full definition
A well designed cabinet will house all of your appliances in what appears to be a false wall or a storage unit, with seeming ease. (homedit.com)
I hardly ever notice when someone wears really high heels, provided that they can walk graciously & with seeming ease in them. (corporette.com)
I'll commend the movie for its gall to tackle such touchy subjects with such seeming ease, but I wish a bit more time had been taken to polish its slower, less successful bits. (markreviewsmovies.com)