Modal(a.) Of or pertaining to a mode or mood; consisting in mode or form only; relating to form; having the form without the essence or reality.
Modal(a.) Indicating, or pertaining to, some mode of conceiving existence, or of expressing thought.
Modality(n.) The quality or state of being modal.
Modality(n.) A modal relation or quality; a mode or point of view under which an object presents itself to the mind. According to Kant, the quality of propositions, as assertory, problematical, or apodeictic.
Modally(adv.) In a modal manner.

Words within modals