Tactile [tac·tile] adj. (1) Of or connected with the sense of touch. (2) Perceptible by touch or apparently so; tangible: “A tactile keyboard.”

Propitious [pro·pi·tious] adj. (1) Indicating a good chance of success; favorable. “It was a propitious time to leave the party without offending the host.” (2) Favorably disposed toward someone.

Divergence [di·ver·gence] n. (1) A difference or conflict in opinions, interests, wishes, etc. (2) The process or state of diverging.

Mitigate [mit·i·gate] v. (1) Make less severe, serious, or painful: “he wanted to mitigate the damages in court.” (2) Lessen the gravity of (an offense or mistake).

Luminous [lu·mi·nous] adj. Bright or shining, esp. in the dark. Glowing with health, vigor, or a particular emotion: “Her eyes were luminous with joy.”

Austerity [aus·ter·i·ty] n. (1) Sternness or severity of manner or attitude. (2) Extreme plainness and simplicity of style or appearance.

Fractious [frac·tious] adj. (1) Easily irritated; bad-tempered: “they fight and squabble like fractious kids.” (2) (of an organization) Difficult to control; unruly.

Abysmal [a·bys·mal] adj. Extremely bad; appalling. “The results were pretty abysmal;” “Abysmal failure.”

Atrocious [a·tro·cious] adj. Horrifyingly wicked: “Atrocious cruelties.” Of a very poor quality; extremely bad or unpleasant: “Atrocious weather.”

Endemic [en·dem·ic] adj. Native to a specific region or environment and not occurring naturally anywhere else. “Malaria is endemic in tropical climates.” (n.) An endemic plant or animal.