IPA: /dɪˈlɪrɪəsli/
KK: /dɪˈlɪrɪəsli/
In a state of extreme excitement or happiness, often to the point of being irrational or confused.
She was deliriously happy when she won the lottery.
Deliriously → It is formed from "delirium" (from Latin *delirium*, meaning a state of confusion or madness) and the suffix "-ly" (meaning in a manner of). The word "deliriously" means in a manner characterized by delirium or extreme excitement.
Think of a state of confusion or excitement ('delirium') and how it describes a way of behaving ('-ly'). This helps you remember that 'deliriously' means acting in a confused or excited manner.