Use 'inebriation' to describe not only physical drunkenness, but also the associated emotions like euphoria or confusion. The inebriation at the party led to a mix of high spirits and a few teary outbursts.
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Degree of Drunkenness
'Inebriation' usually implies a significant level of drunkenness, often more than just a slight buzz. After his fourth drink, his inebriation was noticeable to everyone.
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Negative Connotation
'Inebriation' often carries a negative connotation, suggesting a lack of control or excess. His frequent inebriation has become a concern among his friends.