Unstrained

1. (a.) Not strained; not cleared or purified by straining; as, unstrained oil or milk.

2. (a.) Not forced; easy; natural; as, a unstrained deduction or inference.

Thesaurus Entries

calm, coolheaded, inexcitable, nerveless, relaxed, rock-steady, steady, steady-handed, steady-nerved, steel-nerved, strong-nerved, unblenching, unblinking, unfaltering, unflinching, unnervous, unquivering, unshaken, unshaky, unshrinking, untremulous, unwavering, without a tremor