The antonyms for "de-lighted" are disheartened, disappointed, discouraged, miserable, and saddened. Disheartened refers to a feeling of sadness caused by the loss of hope or courage. Disappointed means to feel let down or dissatisfied with a situation or outcome. Discouraged refers to a feeling of hopelessness or loss of motivation. Miserable is the feeling of being extremely unhappy or uncomfortable. Saddened is the emotion of feeling sorrow or distress. These antonyms can be used to express the opposite of being delighted, which is to feel upset, downhearted, or unhappy about something.