[adjective] -ier, -iest - (of a person) confused and unable to think clearly because of tiredness, illness, alcohol or drugs, or (of a situation, plans, language, etc.) not clear or well-explainedFeeling muzzy from the blow on his head, he got up very slowly.Until a week ago, the group's objectives were slightly muzzy.
MUZZY
Meaning of MUZZY in English
Cambridge English vocab. Кембриджский английский словарь. 2012