The term "most dismaying" describes the feeling of being extremely discouraged or distressed. Some antonyms for this term include uplifting, encouraging, inspiring, heartening, and joyous. If something is uplifting, it gives you a feeling of hope and positivity. Encouraging means that someone is supporting and cheering you on. Inspiring means that something motivates you to take action or achieve your goals. Heartening means that you feel comforted and reassured. Lastly, joyous means that something brings you happiness and pleasure. By using these antonyms, you can describe the opposite of the feeling of "most dismaying".