The antonyms for the word "dis-mayed" are confidence, composure, reassurance, courage, encouragement, and poise. When someone is confident, they are not easily discouraged or intimidated, and they have faith in their abilities. Composure is the ability to remain calm and composed, even in stressful situations. Reassurance is the act of giving someone a sense of certainty and confidence. Courage is the ability to face difficulty, danger or pain, without being intimidated. Encouragement is the act of inspiring or motivating someone to do their best, even when facing challenges. Poise is the ability to remain calm and self-assured in any situation.