Anomaly

deviation from the norm, an abnormal order, form or rule. One that is difficult to classify, peculiar or abnormal.

Synonyms: irregular, abnormal

Assuage

to appease, ease, make less severe

synonyms: relieve, placate, pacify, calm, relax, slack, slacken, soothe

Enigma

puzzling, ambiguous, inexplicable

synonyms: mystery, perplexity, question, question mark, bewilderment, sticker, puzzler, knot, crux

Equivocal

ambiguous, not easily grasped or understood, questionable

synonym: obscure, ambivalent, doubtful, hazy, indistinct, doubtful, dubious, questionable, indeterminate, multivocal, uncertain, undoubtful, disreputable.

Fervid

passionate, extremely hot, zealous

synonym: impassioned, feverish

Erudite

scholarly

synonyms: learned, well-read

Lucid

bright, clear, easily understood, rational, translucent

synonyms: bright, sane, understandable, clear

Opaque

obscure, impenetrable by light, not reflecting light, dull, unintelligible, obtuse, dense

synonyms: obscure, clouded, cloudy, filiginous, shadowy, shady, ambiguous, equivocal, dusky, doubtful, unclear, uncertain, vague, incomprehensible

Placate

appease, to allay the anger of

synonym: pacify, comfort, tranquilize

Precipitate

to fall, to cause to happen suddenly, prematurely, to hurl downward; (as a adj) moving rapidly or heedless, reckless; (as a noun) a solid or phase separated from a solution

synonyms: abrupt, hasty, heedlessly, impetuous, rushing

Prodigal

lavish, wastefully extravagent, profuse

synonyms: exuberant, lavish, luxuriate, opulent, excessive, abundant

Zeal

enthusiatic devotion to a cause

synonyms: passion, spirit, energy, fierceness, intensity, vehement