Antonyms

Condone means to accept or forgive behavior that is considered wrong. 'Convict' means to declare guilty and condemn, which opposes condoning. 'Contusion' means bruise (unrelated). 'Placate' means to appease, similar to condone.

Resplendent means shining brightly, radiant, or brilliant in appearance. 'Leaden' means dull, heavy, and lacking brightness - the direct opposite. 'Supine' means lying face up (unrelated).

-ance/ancy (state of being) Other words: redundancy, piquancy, precipitancy, dalliance, relevance, significance

-ward (in a specified direction) Other words: Untoward, forward, wayward, awkward

-ous (characterized by) Other words: Voracious, virtuous, gracious, victorious, avaricious, lustrous

-ent (having, showing or doing) Other words: Incipient, grandiloquent, resilient, recipient

-an (belonging to) Other words: Authoritarian, pedestrian, gargantuan, pagan

-ous (characterized by) Other words: Voracious, virtuous, gracious, victorious, avaricious, lustrous

-ant (that has or does) Other words: Defiant, discordant, buoyant, complaisant, abundant, exuberant, accordant

-an (belonging to) Other words: Authoritarian, Bohemian, pedestrian, pagan

-osis (often diseased condition) Other words: Psychosis, neurosis

-ous (characterized by) Other words: Voracious, virtuous, gracious, victorious, avaricious, lustrous

Tetchy means irritable, bad-tempered, or easily annoyed. Option C (cordial) meaning warm, friendly, and pleasant is the correct opposite. Peevish (A) is a synonym, not opposite. Nudged (B) is unrelated, melodramatic (D) describes exaggerated behavior, and pedantic (E) means overly concerned with minor details.