noun.
The state of having or being formed by an intention.
noun.
The property of being about or directed toward a subject, as inherent in conscious states, beliefs, or creations of the mind, such as sentences or books.
The Century Dictionary and Cyclopedia
noun.
The character or fact of being intentional; designedness.
the GNU version of the Collaborative International Dictionary of English
noun.
The quality or state of being intentional; purpose; design.