In an unenthusiastic way; without enthusiasm.(adverb)
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Use "unenthusiastically" in a sentence
"I picked it up like a jury summons, which is to say, unenthusiastically."
"Haywood's hiring by athletic director Steve Pederson was greeted unenthusiastically by fans, boosters, alumni and students who questioned why a school with annual Top 25 aspirations hired him away from mid-major Miami Ohio."
"Don Alfredo shakes my hand unenthusiastically and looks at me with an arching glance."