Marked by success; prosperous. Suggesting a positive and successful future. “An auspicious time to purchase the stock.”

Deeply, often wistfully or dreamily thoughtful. Expressive of melancholy thoughtfulness. “She was feeling pensive after seeing an old boyfriend.”

 1. Having the ring of truth or plausibility but actually fallacious. “A specious argument.” 2. Deceptively attractive.

1. Idealistic without regard to practicality; impractical. 2. Impulsive: tending to act on whims or impulses. “It was clearly a quixotic case against the defendant.”

1. Skeptical; disbelieving. “Most people are incredulous of stories about flying saucers.” 2. Expressive of disbelief. “An incredulous stare.”

Extremely unpleasant; repulsive. Deserving of hatred or repugnance. “The detective said it was the most odious crime she had ever seen.”

Sharp or biting, as in character or expression. “The director occasionally allowed an acerbic tone to an otherwise subtle dialogue.”

1. Difficult to understand; abstruse. 2. Not publicly disclosed; confidential. 3. Of rare, special, or unusual interest. “Her software’s success was based on an esoteric programming language.”

Menacing; threatening. “Ominous black clouds;” “An ominousscream prior to the shooting.”

One that is out of its proper, chronological, or historical order, especially a person or practice that belongs to an earlier time. “A sword is an anachronism in modern warfare.”