delirious
UK: dɪˈlɪəriəs | US: dɪˈlɪriəs
adj. in a state of wild excitement or ecstasy
adj. affected with delirium (a disturbed mental state, often due to illness)
adj. wildly irrational or illogical
The word "delirious" traces back to the Latin delirare, meaning "to go off the furrow" (de- "off" + lira "furrow"). Farmers used this metaphor to describe someone whose mind "strayed from the straight path," leading to its modern sense of mental confusion or wild excitement. The suffix -ous (from Latin -osus) turns it into an adjective, preserving the core idea of deviation from rationality.
The fever left him delirious, muttering incoherently.
She was delirious with joy after winning the championship.
His delirious rant made no sense to the audience.
The patient became delirious due to severe dehydration.
Fans were delirious when their team scored the winning goal.