Breadcrumb Home > Dictionary > Index M maximal: Meaning and Definition of Find definitions for: max•i•mal Pronunciation: (mak'su-mul), [key] — adj. of or being a maximum; greatest possible; highest. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: maximal (Thesaurus) maxima maximal ideal ✖ Related Content Daily Word Quiz: unctuous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language