A superabundance; an excessive amount or number: “Upon returning from the trip, she had a plethora of calls to make.”

1. Lasting for a markedly brief time: “The ephemeral nature of fashion trends.” 2. Living or lasting only for a day, as with certain plants or insects.

Constituting a very large, indefinite number; innumerable: “The myriadsnowflakes in the winter.”

1. Expressing rigid opinions; Prone to expressing strongly held beliefs and opinions. “A dogmatic speech.” 2. Asserting opinions in a doctrinaire or arrogant manner; opinionated.

Characterized by or subject to whim; impulsive and unpredictable. “He’s such a capricious boss I never know how he’ll react.”

1. Seeking and enjoying the company of others; sociable. “She is a gregarious, outgoing person.”

1. Instinctual: proceeding from instinct rather than from reasoned thinking or intellect. “A visceral business decision.” 2. Emotional: characterized by or showing crude or elemental emotions.

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.