audacious bold calm coolheaded courageous dauntless fearless inexcitable intrepid nerveless relaxed rock-steady steady steady-handed steady-nerved steel-nerved strong-nerved unabashed unappalled unawed unblinking uncowed uncringing undaunted undismayed unfaltering unflinching unintimidated unnervous unquivering unshaken unshaky unshrinking unstrained untremulous unwavering valiant valorous without a tremor