97. Arbitrary, Capricious

Arbitrary: Based on random choice
Capricious: Given to sudden changes

98. Assiduous, Diligent

Assiduous: Showing great care and effort
Diligent: Hardworking and careful

99. Austere, Stern

Austere: Severe or strict in manner
Stern: Serious and unyielding

100. Axiomatic, Self-evident

Axiomatic: Universally accepted as true
Self-evident: Obvious without proof

101. Baleful, Ominous

Baleful: Threatening harm
Ominous: Suggesting danger

102. Bellicose, Warlike

Bellicose: Inclined to fight
Warlike: Ready for war

103. Blandishment, Flattery

Blandishment: Persuasive praise
Flattery: Excessive praise

104. Bombastic, Pompous

Bombastic: High-sounding but meaningless
Pompous: Self-important and grand

105. Bucolic, Pastoral

Bucolic: Relating to the countryside
Pastoral: Rural and idyllic

106. Callous, Unfeeling

Callous: Emotionally hardened
Unfeeling: Lacking compassion

107. Candor, Frankness

Candor: Honesty in expression
Frankness: Direct honesty

108. Capitulate, Surrender

Capitulate: Cease resistance
Surrender: Give up control