A method for providing an adaptive keyboard interface is provided, which includes searching for at least one candidate message that is expected to be prepared by a user with reference to context information about a situation in which the user prepares a message; and if a first text object of text objects that are included in the at least one searched candidate message is selected by the user, providing at least one replacement text object having a degree of association with the first text object, which is equal to or higher than a predetermined level, based on the first text object.