Extremely enthusiastic or stimulated to the point of being unable to calm down or think clearly.
A compound of 'over-' (excessively) and 'excited' (emotionally aroused). The 'over-' prefix became productive in English for creating intensified versions of adjectives.
Your nervous system has a literal 'arousal level dial,' and when you're overexcited, your brain is flooded with adrenaline and cortisol—which is why excited kids can't sit still but also have trouble concentrating!
Complete word intelligence in one call. Free tier — 50 lookups/day.