Antonyms

Arrogant means having an exaggerated sense of one's own importance. Meek is the best antonym, as it describes someone who is quiet, gentle, and submissive.

Brilliant is full of light, but dull is dark and drab. Therefore, it is opposite in meaning.

Nugatory means worthless, valuable is opposite to it.

Considerate means showing care; harsh is opposite to it.

Haggard means unwell; healthy is opposite to it.

Evident means obvious doubtful is opposite to it.

A kook is an eccentric or crazy person. Sane is the direct antonym, as it refers to someone who is mentally sound.

Illustrious means well known which is opposite of unknown.

Mortal means subject to death which is opposite of immortal.

Desultory means lacking a plan, purpose, or enthusiasm. Strictly methodical is the direct opposite, as it implies a structured and purposeful approach.

Peripatetic means traveling from place to place, especially for work. Stationary is the antonym, as it means not moving or fixed in one place.

Canonical refers to something that is accepted as true, standard, or authoritative. Heterodox means departing from accepted beliefs or standards.

A tyro is a beginner or novice. An expert is someone who has mastered a skill or field.

Verisimilar means having the appearance of truth or being probable. Implausible means unlikely or not reasonable, serving as a suitable antonym.

Prodigality is the quality of being wasteful or extravagant. Penury is extreme poverty or destitution, which is the opposite of having excess resources to waste.