Answer: B) To do one's best / To do one's worst.
Explanation for this question is being written.
Answer: A) A direct opposite.
Answer: B) Defend
Answer: B) Free from undue bias or preconceived opinions.
Answer: B) To repeal.
Answer: B) Unaffected
Answer: B) Retreat
Answer: C) Chaotic
Answer: C) Garrulous: taciturn.
Answer: A) Old
Answer: A) Histrionic
Answer: C) Complementary antonyms.
Answer: B) Attenuation.
Answer: B) Relish
Answer: B) Prohibit
Answer: D) Contradict
Answer: C) Pack/unpack
Answer: B) Counterfeit
Answer: A) Relational antonyms.
Answer: C) Sterling
Answer: C) Clumsy
Answer: B) Limit
Answer: B) A glutton eats excessively, while a parsimonious person is stingy.
Answer: B) Deteriorating
Answer: B) Subdued
Answer: B) Ignorantmodel
Answer: B) Polar members of a gradual opposition.
Answer: C) Jonathan Edwards.
Answer: B) Ventral
Answer: D) Antithetical
Answer: D) Persuade
Answer: C) Of low level.
Answer: C) Rigid
Answer: D) Contradictory
Answer: C) The Good, The Bad and The Ugly.
Answer: B) Incorrigible-reformable
Answer: B) Not persuasive (used for arguments, evidence, or speech).
Answer: A) Buy-sell
Answer: A) Binary atonymy.
Answer: B) Degeneration
Answer: D) Disastrous
Answer: B) Prevent
Answer: A) Pragmatic
Answer: B) Redundant
Answer: B) Meanings do not lie on a continuous spectrum (push, pull).
Answer: A) Opposite parts.
Answer: D) Slowed
Answer: B) Total destruction.
Answer: D) Utopian