short-lived; transitory
Ephemeral
relating to a practical point of view or practical considerations.
Pragmatic
having or showing little or no emotion; unfeeling
Apathetic
irregular; erratic; peculiar; odd: crazy behavior
Eccentric
injurious to health; noxious, destructive, hurtful, pernicious
Deleterious
appearance of truth or reason
Plausible
the act of departing from the right, normal, or usual course.
Aberration
ardently active, devoted, or diligent. passionate, intense, fervent, eager, enthusiastic
Zealous
continuing without interruption; unending; ceaseless
Incessant
unselfish, benevolent, philanthropic, generous, charitable; concerned for or devoted to the welfare of others
Altruistic
springing back; rebounding
Resilient
bothersome-aggravating-annoying distressing
Vexing
the effective use of language
Rhetoric
a person or thing that is typical of or possesses to a high degree the features of a whole class
Epitome
untroubled, unbothered, smug
Complacent
existing or being everywhere, especially at the same time; omnipresent
Ubiquitous
to make lucid or clear; throw light upon; explain, illuminate, clarify
Elucidate
a riddle or puzzle
Conundrum
holding fast; characterized by keeping a firm hold; determined
Tenacious
adept, apt, deft, clever, skillful
Adroit
the use of many or too many words; wordy
Verbose
any person, thing, or situation displaying a contradictory nature riddle, anomaly, puzzle
Paradox
a person, especially a child or young person, having extraordinary talent or ability
Prodigy
stealthily treacherous or deceitful, wily, cunning,
Insidious
keen insight; shrewdness
Acumen