Vocabulary

clear; serene

indifference; lack of enthusiasm; inattentiveness

difference; diversity; irregularity; disorder

inadequacy; inappropriateness; unfitness; impropriety

inaccurate; incorrect; inexact; imprecise

ominous; sinister; unlucky; inauspicious

poetic

quadrilateral; square

miscellaneous; mixed; unorganized

strict; rigid; exact; fair; impartial

low rate

reversible

fine; minute; detailed; meticulous; precise

inconsistent; illogical; unconvincing; not thorough; indefinite; half-way

irregular (schedule, service, etc.); indeterminate (length of time); staggered (payments)

comfortable; carefree

subjective

extraordinary; uncommon; remarkable; unusual; rare; prodigious

outrageous; preposterous; scandalous; inexcusable; absurd; execrable

security; stability; safety; peace

variable; changeable; convertible; controllable

questionable; doubtful; suspicious

stubborn; dogged; persistent; tenacious

nonsense; no meaning; meaningless

mild (climate); temperate; clement; pleasant; agreeable

intense; violent; severe; vehement

weak and small; inferior in strength and size; minor

obedient; submissive; docile; meek; pliant

agile; nimble; light (of foot)

insensitive; inconsiderate; callous; thick-skinned

abundant; ample; plentiful; affluent

tasteless; flavourless

progressive

idleness; inactivity

intelligence; cleverness; innate aptitude

ferocious; brutal; atrocious; savage; barbarous

busy; high-stress; hectic; pressed (with business)

broad-minded; open-minded; openhearted; generous; magnanimous

literary

devoted; self-sacrificing