definite Play adjectiveClearly stated or decided; not vague or doubtful. SYNONYMS certainclear-cutconcreteconfirmeddecideddefineddetermineddirectdistinctestablishedexactexplicitexpressfixedirrefutablemarkednot in doubtnot in questionoutrightplainprecisespecificunambiguousundisputedunequivocalunmistakableunquestionedwell defined