/ Dictionary / Index S subnormal: Meaning and Definition of Find definitions for: sub•nor•mal Pronunciation: (sub-nôr'mul), [key] — adj. below the normal; less than or inferior to the normal: a subnormal amount of rain. being less than average in any psychological trait, as intelligence, personality, or emotional adjustment. —n. a subnormal person. that part of the x-axis of a curve cut off between the ordinate and a normal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: subnormal (Thesaurus) subnitrate subnotebook Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language