Home » One word substitution » Existing Only In The Mind.Existing Only In The Mind.One word substitution of:Existing Only In The Mind.Ans. Imaginary Check more.... By fair or foul means Wears heart on sleeves Turn up one’s nose at A Monotheistic Religion Of Ancient Persia The Scientific Study Of The Structure, Physiology, Classification, And Distribution Of Animals. Time When Something Is The Most Powerful Related To Astrology Person Who Shows Great And Uncompromising Enthusiasm For A Religion, Party Etc. An Inhabitant of New England The Yellow Internal Part Of A Bird’s Egg