169. Harangue, Lecture

Harangue: Lengthy rant
Lecture: Formal talk

170. Hegemony, Dominance

Hegemony: Leadership dominance
Dominance: Control over others

171. Histrionic, Dramatic

Histrionic: Overly theatrical
Dramatic: Emotionally expressive

172. Iconoclast, Rebel

Iconoclast: Attacker of traditions
Rebel: One who resists authority

173. Idiosyncrasy, Quirk

Idiosyncrasy: Peculiar habit
Quirk: Unusual trait

174. Ignominious, Shameful

Ignominious: Deserving disgrace
Shameful: Bringing dishonor

175. Impecunious, Poor

Impecunious: Having little money
Poor: Lacking wealth

176. Impetuous, Rash

Impetuous: Acting without thought
Rash: Hasty

177. Implacability, Rigidity

Implacability: Inability to be appeased
Rigidity: Lack of flexibility

178. Impute, Attribute

Impute: Assign responsibility
Attribute: Regarded as caused by

179. Inchoate, Unformed

Inchoate: Just begun
Unformed: Not fully developed

180. Incredulous, Skeptical

Incredulous: Unwilling to believe
Skeptical: Doubting