Of a method or means to an end: that may swiftly and easily be employed; straightforward, practical. Cf. sense A. 10.

Of action: easy to adopt or pursue; involving no difficulty or effort; suiting a person's natural inclination. Obsolete.

figurative. Easy or pleasurable. Cf. primrose path n. at primrose, n. adj.compounds 2.

In weakened sense: involving no awkwardness, difficulty, or inconvenience; easy, straightforward.