Vocabulary and Synonyms

Moral refers to principles of right and wrong behavior. Ethical is the correct synonym as it relates to moral principles. Maiden means unmarried, Respect is a related concept but not a synonym, and Defect means a fault or flaw.

Forgo means to voluntarily refrain from doing or having something. Abandon is the closest synonym as it can mean giving up completely. Appraisal means evaluation, Appetent means craving or desiring (uncommon word), and None of these is incorrect.

Option 3 is the best response. Other options are unproductive or counter-productive.

Debase means to lower in quality, value, or character; to degrade or reduce worth. Demote means to reduce in rank, position, or status. Both involve reducing someone or something to a lower level, though demote specifically refers to rank.

Debauch means to lead away from virtue, to corrupt morally, or to engage in excessive sensual pleasures. Corrupt means to cause to become morally depraved or to change from good to bad in character. Both refer to moral degradation and loss of virtue.

Decapitate means to cut off the head, to behead. Behead means exactly the same - to cut off someone's head. These are perfect synonyms.

Decadence refers to a state of moral or cultural decline, decay, or deterioration. Deterioration means the process of becoming progressively worse or declining in quality. Both refer to decline and worsening conditions.

Decorous means showing good taste, propriety, and politeness in behavior and appearance; characterized by dignity and good manners. Tasteful means showing good aesthetic judgment; characterized by good taste. Both relate to good taste and propriety.

Deciduous means falling off or shed seasonally; in botany, refers to trees that lose leaves annually. Temporary means lasting only for a limited time; not permanent. Deciduous plants temporarily shed leaves, making temporary a reasonable synonym in this context.

Decry means to publicly criticize, express strong disapproval of, or condemn something. Condemn means to express strong disapproval of, to criticize harshly, or to judge unfavorably. Both involve public disapproval and harsh criticism.

Defile means to make dirty or impure; to damage or spoil something, especially something sacred or pure. Pollute means to contaminate, make dirty, or impure. Both involve making something unclean or spoiled.

Deference means showing respect or high regard to someone. 'Respect' is the closest synonym among the options. 'Manners' is related but too broad - it doesn't capture the specific attitude of submission or regard that deference implies. 'Haughtiness' is actually an antonym (arrogance or superiority).

Deft means performing tasks with skill, quickness, and cleverness - especially with your hands. 'Skillful' is the exact synonym. 'Sophisticated' is related but doesn't capture the physical dexterity that 'deft' implies. 'Incapable' and 'Clumsy' are direct antonyms.

Defunct means no longer existing, functioning, or valid - literally 'dead' or 'extinct'. 'Extinct' is the perfect synonym. 'Current', 'Alive', and 'Everlasting' are all antonyms. 'Ensured' is completely unrelated.