Nocturnal [noc·tur·nal] adj. Occurring or coming out at night: “A nocturnal lifestyle.”

Aesthetic(s) [aes·thet·ic] adj. 1. Of or concerning the appreciation of beauty or good taste. 2. Characterized by a heightened sensitivity to beauty. “The aesthetic design of the building is amazing!”

Enervate [en·er·vate] tr.v. 1. To weaken or destroy the strength or vitality. 2. Lacking physical, mental, or moral vigor. “Prolonged exposure to the sun and dehydration enervated the desert racing team.”

Tempestuous [tem·pes·tu·ous] adj. Tumultuous; stormy: “A tempestuous relationship.”

Attrition [at·tri·tion] n. 1. A gradual, natural reduction in membership or personnel, as through retirement, resignation, or death. 2. A gradual diminution in number or strength. “The company’s attrition rate was quite high.”

Axiom [ax·i·om] n. 1. An established rule, principle, or law. 2. A self-evident or universally recognized truth; a maxim. 3. A self-evident principle or one that is accepted as true without proof as the basis for argument.

Prognosticate [prog·nos·ti·cate] tr.v. To predict according to present indications or signs; foretell. “The armchair quarterback tried to prognosticate the play from his recliner.”

 [in·sid·i·ous] adj. 1. Working or spreading harmfully in a subtle or stealthy manner: insidious rumors; an insidious disease. 2. Beguiling but harmful; alluring: insidious pleasures.

1. Feeling or showing little or no emotion; unresponsive. 2. Feeling or showing a lack of interest or concern; indifferent. “He seemed very apathetic about the company’s closure.”

Cornucopia [cor·nu·co·pi·a] n. A large amount of something; a great supply, an abundance: “A cornucopia of employment opportunities.”