Can a method be considered asynchronous if it lacks the await operator?

In C#, a method declared with the async keyword does not necessarily have to contain the await operator. Such a method is considered asynchronous by syntax, but if it does not contain await, it executes synchronously, and the compiler will issue a warning.

Without await, the method will not suspend execution and will not utilize the benefits of asynchrony; it essentially works like a regular method returning Task or Task<T>.

Example:

public async Task<int> GetNumberAsync()
{
    return 42; // No await, the method will execute synchronously
}

Thus, the method can be considered asynchronous by declaration, but real asynchrony is only achieved when await is present inside the method.