Effortless means that no exertion was required. This could mean mental or physical exertion. It was easy, undemanding, unchallenging, painless, elementary, or simple.
Ease Straightforward Effortless Plainness unfussy minimal
A talented dancer makes the steps look effortless.
Many professional athletes make their sport look effortless. Michael Jordan made the game of basketball look effortless.
lazy.... lol
effortless, elementary, facile.
Effortless, simple, sinchy.
She was efffortless on her math test.
effortless
effortless, elementary, hands down
effortless, not difficult, simple, straightforward,
easy, effortless, light, plain
Speechless means to lose the words, nothing to say. Effortless means something without hard work.