The Collaborative International Dictionary
Frictionless \Fric"tion*less\, a. Having no friction.
Wiktionary
a. Of or pertaining to lack of friction.
WordNet
adj. lacking all friction; "a perpetual motion machine would have to be frictionless"
Usage examples of "frictionless".
That is, she thought that she did so then, and rather wondered at the frictionless ease with which it went through: it had simply not occurred to her that in the instant of being made an Unattached Lensman she had been freed automatically from every man-made restraint.
The flat belly and underwing surface drifted down to maglev distance, fields meshing with those of the runway, and it slid frictionless at half a meter until the gentle magnetic tugging brought it to a halt.
Popular with the under fifteens because you didn’t need neural nanonics to switch the directed frictionless soles on or off.
The aircraft spun heavily into the frictionless surface and the passenger was thrown free before its pilot and the crippled glider began to slip groundwards at an accelerating rate.
His tribarrel floated on a frictionless magnetic bearing, but inertia made slewing it a deliberate business.
Three are in contact with each other, spinning orthogonally to each other on frictionless bearings.
Only the great suspension cables remain far above, ringed about with razor wire and frictionless gel.
When it's struck it redistributes the kinetic energy over the maximum possible surface, like a second skin of very strong steel with a frictionless surface.