without a hitch

calmly comfortably conveniently efficiently effortlessly freely handily quickly readily regularly simply smoothly surely well

competently coolly dexterously evenly facilely fluently hand over fist hands down just like that lightly like nothing no sweat nothing to it piece of cake plainly steadily swimmingly uncomplicatedly with ease with no effort without trouble

difficultly insufficiently

doubtedly dubitably questionably

smoothly

as planned cosily easily effectively effortlessly favorably fortunately happily like a dream like clockwork prosperously quickly satisfyingly successfully well with flying colors with no trouble

lousy