Synonyms

Gullible means easily persuaded or tricked. Credulous is a direct synonym meaning having or showing too great a readiness to believe things.

An arbiter is a person who settles a dispute or has ultimate authority in a matter. Adjudicator is a direct synonym for someone who makes a formal judgment on a disputed matter.

Doom refers to death, destruction, or some other terrible fate. Destiny is the most appropriate synonym in this context, as both relate to an inescapable future or outcome.

Insolvent means unable to pay one's debts. Ruined is a synonym in the sense of financial ruin or bankruptcy.

Shrewd means having or showing sharp powers of judgment. Sharp is a common synonym for someone who is mentally quick and astute.

To embark means to go on board a ship or aircraft, which is synonymous with being aboard.

Fictitious means not real or true, being imaginary or having been fabricated. Since false, sham, and pretend all carry this meaning, 'all of these' is the correct choice.

Plundered means to steal goods from a place or person, typically using force. Pillage is a direct synonym for this action.

Queer means strange or odd. Odd is the most direct synonym provided.

Contrive means to create or bring about by deliberate use of skill and artifice. Fabricate, engineer, and concoct are all synonyms for this process, making 'all of these' correct.

A knack is an acquired or natural skill at performing a task. Skill and talent are synonyms for this ability, making 'all of these' the correct choice.

Nimble means quick and light in movement or action. Brisk, agile, and quick are all synonyms, making 'all of these' the correct choice.

Allude means to refer to something indirectly or suggest something without explicitly stating it. Imply is the closest synonym as it means to suggest or hint at something. Withold is a misspelling of withhold.

Comprehension is the action or capability of understanding something. Cognition is a synonym referring to the mental action or process of acquiring knowledge and understanding.

Impetus is the force or energy with which a body moves. Momentum is the most accurate synonym among the choices.

Vigilant means keeping careful watch for possible danger or difficulties. Cautious is a synonym that reflects the careful nature of being vigilant.

Incongruous means not in harmony or keeping with the surroundings or other aspects of something. Inappropriate is the best synonym provided.

Wanton can mean cruel or violent without provocation. Malicious is a synonym that captures the harmful, intentional nature of such actions.

Quixotic means exceedingly idealistic, unrealistic, and impractical. Utopian is a synonym describing a state that is idealistic but often impractical.

Abortive means failing to produce the intended result. Vain is a synonym meaning producing no result or useless.