/ Dictionary / Index P parlous: Meaning and Definition of Find definitions for: par•lous Pronunciation: (pär'lus), [key] — adj. perilous; dangerous. clever; shrewd. —adv. to a large extent; greatly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: parlous (Thesaurus) parlour parl. proc. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language