Antonyms

Careless means lacking proper attention or thoroughness; it's the opposite of being careful and precise. Accurate is the correct antonym, meaning exact, precise, and error-free. Inaccurate would be a synonym, not an antonym.

Quiet can mean silent, calm, or reserved. Boisterous is the opposite, meaning noisy, energetic, and rowdy. Reserved (D) is actually similar in meaning to quiet, not opposite. Boisterous represents the noisy, energetic end of the spectrum.

Disregard means to pay no attention to, ignore, or treat without respect. Respect is the correct opposite, meaning to show regard, consideration, or esteem for something. Respect implies attention and deference, which is the opposite of disregard.

Correct means accurate, right, or without errors. Inaccurate is the correct opposite, meaning incorrect, wrong, or not precise. Note that Right (D) is a synonym, not an antonym. Flawless (B) is also similar to correct, not opposite.

To reprove means to rebuke, criticize, or find fault with someone. The opposite is to flatter, which means to compliment excessively or praise insincerely. Flattery represents praise versus criticism. Censure (C) is actually a synonym, meaning to criticize formally.

Affection means to like and is therefore opposite in meaning to Hatred.

To concur means to agree, be of the same opinion, or coincide. The correct opposite is to dispute, which means to disagree, argue against, or question. Approve (A) is similar to concur, not opposite. Dispute represents disagreement versus agreement.

Obedience means compliance, submission to authority, or doing what one is told. Mutiny is the correct opposite, meaning rebellion against authority, refusal to obey, or open resistance. Submission (B) is actually a synonym, not an antonym. Mutiny represents active rebellion versus compliance.

To jeer means to mock, taunt, or ridicule someone. The correct opposite is to compliment, which means to praise or express admiration. Compliment represents positive verbal treatment versus mockery. Abuse (B) is similar to jeer, not opposite.

Heedless means careless or not paying attention. Absorbed means deeply interested or focused - the opposite mental state. The option has a typo but is semantically correct.

Hindrance means something that obstructs or interferes. Assistance means help or support - directly opposite to hindering progress.

Discipline means order, control, and self-regulation. Chaos represents complete disorder and lack of control - the direct opposite.

Quick means fast or speedy. Tardy means slow, late, or delayed - the opposite in terms of speed and timeliness.

Carelessness means lack of attention or caution. Awareness means being conscious, alert, and attentive - directly opposite to being careless.