Synonyms: unforced, unstrained
Definition: not resulting from undue effort; not forced
Usage: a voice with a pleasingly unforced quality; his playing is facile and unstrained
Similar words: effortless
Definition: requiring or apparently requiring no effort
Usage: the swallows glided in an effortless way through the busy air
Synonyms: unstrained
Definition: not placed under psychological stress
Usage: the campaign would not leave party loyalties unstrained
Similar words: relaxed
Definition: without strain or anxiety
Usage: gave the impression of being quite relaxed; a relaxed and informal discussion