Frictionless

Part of speech: adjective

Definitions

1. Lacking any resistance or hindrance to movement, describing a surface that facilitates effortless motion, and referring to a situation or process that occurs without any obstacles or friction
2. Defined by the absence of drag in movement, such a surface enables smooth motion, while the term also applies to scenarios where everything proceeds seamlessly without interference
3. Characterized by an absence of resistance when objects move against each other ; describing events or interactions that happen smoothly without opposition or complications

Etymology: Frictionless is a plain compound: the noun "friction" with the suffix "-less," meaning "without." The suffix traces back through Old English "-lēas," which is related to the word "loose," and it has been productive in English for centuries, so forming "frictionless" from "friction" needed no special invention. The adjective describes things free of resistance, but its meaning has widened from a surface a sled can slide across to situations that run without obstruction. The word "friction" itself comes from Latin "frictio," meaning a rubbing, and it is the rubbing sense that the adjective keeps at its core. What is striking is how the modern figurative use depends on that physical picture: a plan or relationship that goes "frictionless" is being described as if it were a machine part that no longer grinds against its neighbours.

Synonyms: smooth, slippery, glossy

Antonyms: rough, gritty, abrasive