229. Polemical, Argumentative

Polemical: Strongly critical
Argumentative: Fond of arguing

230. Precarious, Unstable

Precarious: Not secure
Unstable: Likely to change

231. Precipitate, Hasty

Precipitate: Acting quickly

232. Preclude, Prevent

Preclude: Make impossible
Prevent: Stop it from happening

233. Predilection, Preference

Predilection: Special liking
Preference: Greater liking

234. Preposterous, Absurd

Preposterous: Ridiculous
Absurd: Illogical

235. Prescient, Farsighted

Prescient: Knowing beforehand
Farsighted: Thinking ahead

236. Prodigious, Enormous

Prodigious: Very large
Enormous: Huge

237. Profligate, Wasteful

Profligate: Recklessly extravagant

238. Prolific, Productive

Prolific: Producing abundantly
Productive: Producing results

239. Propensity, Tendency

Propensity: Natural inclination
Tendency: Likelihood

240. Propitious, Favorable

Propitious: Indicating success
Favorable: Advantageous