/ Dictionary / Index U unchartered: Meaning and Definition of Find definitions for: un•char•tered Pronunciation: (un-chär'turd), [key] — adj. without a charter. without regulation; lawless. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unchartered (Thesaurus) uncharted unchaste Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language