CATASTROPHE
(a) Beneficial
(b) Blessing
(c) Soothing
(d) Disastrous

GRATUITOUS
(a) Charitable
(b) Grand appearance
(c) Warranted
(d) Being grateful

VERACITY
(a) Purity
(b) Being just
(c) Falsity
(d) Immorality

GRIT
(a) Anxiety
(b) Cowardice
(c) Impatience
(d) Perseverance

SPORADIC
(a) Spreading easily
(b) Inciting
(c) Regular
(d) Uncommon

MALADROIT
(a) Authoritative
(b) Skilful
(c) Maladjusted
(d) Malevolent

ROTUND
(a) Feeble
(b) Healthy
(c) Slim
(d) Weak

PUNCTILIOUS
(a) Foolish
(b) Uncommunicative
(c) Careless
(d) Inexperienced

PROBITY
(a) Dishonesty
(b) Timidity
(c) Treachery
(d) Insincerity

CONTEST
(a) Accept
(b) Defeat
(c) Lose
(d) Run for

SPORADIC
(a) Surviving
(b) Sweeping
(c) Restrained
(d) Persistent