nut·ty 
/ˈnʌti/ adjective
nut·ti·er; nut·ti·est /ˈnʌti/ adjective 1 a : tasting or smelling like nuts
▪ candy with a nutty taste ▪ a nutty coffee
b : containing nuts
▪ a nutty candy bar 2 informal a : silly, strange, or foolish
▪ What a nutty idea. ▪ He's got some nutty [=weird] friends.
b : mentally ill
▪ Her aunt's a little nutty. [=crazy]
▪ candy with a nutty taste ▪ a nutty coffee
b : containing nuts
▪ a nutty candy bar
▪ What a nutty idea. ▪ He's got some nutty [=weird] friends.
b : mentally ill
▪ Her aunt's a little nutty. [=crazy]
— nut·ti·ness noun [noncount]
▪ I noticed some nuttiness in the coffee's taste. ▪ the sheer nuttiness of the idea
▪ I noticed some nuttiness in the coffee's taste. ▪ the sheer nuttiness of the idea
