Sadness?
Or depress.
delight
elation
elation
joy **that's 3 letters
joy
The opposite of horror is typically understood to be joy or delight, as horror evokes fear and negativity, while joy brings happiness and positivity.
joy
Increasing Misery is the opposite of 'Diminishing Joy'
The opposite of woe is joy. Joy is a feeling of great pleasure and happiness, whereas woe is a feeling of deep sorrow or distress.
Joy
euphoria, for joy
joy
glee
glee !
joy