List of unstrained synonyms and unstrained related words.
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