Learner's definition of ATTITUDE
1 [count] : the way you think and feel about someone or something— often + to, toward, or towards
I don't understand your attitude to money.
She's studying how attitudes toward death vary from culture to culture.
He wants to change the hostile attitude they have toward technology.
2 [count] : a feeling or way of thinking that affects a person's behavior
He has an aggressive/rebellious attitude. [=he behaves toward other people in an aggressive/rebellious way]
She's friendly and has a good attitude.
You need to change your bad attitude.
There's been a change/shift in his attitude since his accident.
She has an attitude problem. [=she is not friendly or cooperative]
3 a : a way of thinking and behaving that people regard as unfriendly, rude, etc.
[noncount] b [noncount] : a strong, confident, or impressive quality
4 [count], formal : a particular way of positioning your body