INVECTIVE
(a) Adjective
(b) Polite language
(c) Pertaining to legal matters
(d) Brief

COPIOUS
(a) Shortage
(b) Imitation
(c) Warm
(d) Delightful

ACERBIC
(a) The accused
(b) Polite
(c) Unpleasant
(d) Improbable

ASCETIC
(a) Ardent
(b) Indulging in pleasures
(c) Careless
(d) Patriotic

UBIQUITOUS
(a) Honest
(b) Rarely found anywhere
(c) Out of fashion
(d) Scrupulous

PARSIMONIOUS
(a) Partisan
(b) Permissible
(c) Revealing
(d) Extravagant

EPHEMERAL
(a) Mysterious
(b) Impolite
(c) Long-lasting
(d) Exciting

INSUPERABLE
(a) Predictable
(b) Surmountable
(c) Countable
(d) Unendurable

EXONERATED
(a) Implicated
(b) Criticised
(c) Condemned
(d) Convicted

NADIR
(a) Zenith
(b) Climax
(c) Peak
(d) The lowest point

EVASIVE
(a) Unreliable
(b) Tricky
(c) Straightforward
(d) Elusive