cing clearness

pinchbeck dignity [pinchbeck = cheap imitation]

pining melancholy

pioneering spirit

pious platitudes

piquant allusions [piquant = attracting or delighting]

pitiable frenzy

pitiless precision

pivotal point

placid stupidity

plainly expedient

plainspoken rebuke

plaintive cadence

plastic mind

plausible commonplaces

playful wit

pleasing reveries

pleasurable excitement

plenary argument

plentiful harvest

plighted word [plighted = promised by a solemn pledge]

poignant clearness

pointless tale

poisonous counsels

polished ease

polite indifference

political malcontent

polluting taints

pompous platitudes

ponderous research

pontifical manner

popular resentment

populous fertility

portentous gulf

positively deteriorating

posthumous glory

potential energy

powerful stimulant

practical helpfulness

precarious path

precautionary measure

precipitous flight

precise purpose

precocious wisdom

preconceived view

predatory writers

predestined spinster

predominant habit

pregnant hint

preliminary assumption

premature ripening

premonitory symptoms

preoccupied attention

prepossessing appearance

preposterous assertion

prescient reflection
[prescient = perceiving the significance of events before they occur]

prescribed conditions

presiding genius

pressing necessity

pretended surprise

pretentious dignity

preternatural sagacity [preternatural = extraordinary]
[sagacity = farsighted; wise]

pretty plaintiveness

prevailing misconception

priestly austerity

primal energy

prime factor [no integer factors; irreducible; 1,2,3,5,7,11...]

primeval silence

primordial conditions

princely courtesy

prismatic blush

pristine dignity

private contempt

privileged caste

prized possession

problematic age

prodigally lavished

prodigious variety

productive discipline

profane denunciation

professedly imitated

professional garrulity [garrulity = excessive talkativeness]

proffered service

profitable adventure

profligate expenditure

profound conviction

profuse generosity

projected visit

prolegomenous babbler [prolegomenous = preliminary discussion]

prolific outpouring

prolix narrative [prolix = wordy]

prolonged happiness

promiscuous multitud