determination

n.

1. The act of determining

   ascertainment, perception, measurement, resolution; see judgment 2, 3.

2. Firmness of mind

   resolution, resoluteness, persistence, certainty, dogmatism, stubbornness, obstinacy, resolve, certitude, decision, assurance, conviction, purpose, intrepidity, boldness, fixity of purpose, hardihood, tenacity, courage, independence, self-confidence, purposefulness, coolness, fortitude, constancy, steadfastness, self-assurance, firmness, dauntlessness, self-reliance, nerve, heart, bravery, fearlessness, valor, intransigence, will, willpower, firmness of purpose, single-mindedness, energy, vigor, stamina, perseverance, strength of will, undauntedness, brave front, bold front, stout heart, mettle, firm faith, enterprise, drive, doggedness, backbone, guts*, spunk*, grit*, pluck*, a stiff upper lip*; see also confidence 2.

   Antonyms hesitation*, vacillation*, irresolution.