noun, noun which may take the genitive case particle 'no'
somewhat excited; a bit agitated
Describes a state of being slightly or somewhat excited or agitated, often used when the excitement is noticeable but not extreme.
He was somewhat excited before the match.
He started speaking in a slightly agitated voice.
興奮 means 'excitement' or 'agitation' in a general or strong sense, while 興奮気味 specifically indicates a mild or somewhat excited state.
Compound of 興奮 (excitement) and 気味 (suffix indicating a slight tendency or state).