1. A feeling or a way of thinking which affects a person's behavior: Beatrice has a positive attitude about the kind of work she does because she works together with others and is friendly; however, Jeremy has a negative attitude since he is not friendly or cooperative.
2. The way a person feels about someone or something: The teacher, Mr. Straight, wants to change the hostile attitude some of his students have regarding mathematics.

The saleslady has an amiable and pleasant attitude with all of her customers.

3. Etymology: from Latin aptitudinem, "fitness"; from Latin aptus, "joined, fitted".