Mo*dal"i*ty (?), n. [Cf. F. modalit'e.]
1.
The quality or state of being modal.
2. Logic & Metaph.
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.
© Webster 1913.