Vocabulary

bilateral

bizarre

visible

foolish

functional

playful

homogeneous

voluntary

mature

misleading

rhythmic; rhythmical

incremental; step-by-step; gradual; stepwise

mediocre; inferior; commonplace; foolish; stupid

grayish

cunning; crafty

eccentric; wild; off-kilter; mad

subordinate; dependent; subsidiary; subservient

very odd; very curious

cyclical

compact; portable; easy-to-use; handy

monumental

ceremonial; ritual; ritualistic; formal

panoramic (view, perspective, etc.); high-level; comprehensive (manner); holistic; broad

concerning the content; with respect to the content; content-wise

plain; frank; candid; open

nonchalant

renewable

stylish; fashionable

unsolvable

stopgap; makeshift; temporary

rude; impolite; discourteous; insolent

in another league; on a totally different level

skillful; clever; versatile; handy

non-substitutable; irreplaceable; unique; non-fungible

nearly equal; almost identical; extremely similar

masochistic

ergonomic

sadistic

cooperative; helpful

uncooperative; unhelpful