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.

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