/ Dictionary / Index P pilotless: Meaning and Definition of Find definitions for: pi•lot•less Pronunciation: (pī'lut-lis), [key] — adj. lacking a pilot or needing no pilot: pilotless aircraft. having no pilot light: a pilotless furnace. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pilotless (Thesaurus) pilot lamp pilotless aircraft 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