emphatic

Synonyms: absolute accented assertive assured categorical certain cogent confident decided definite definitive determined direct distinct dogmatic dynamic earnest energetic explicit express flat for a face forceful forcible important impressive marked momentous no mistake pointed positive potent powerful pronounced resounding significant sober solemn stressed striking strong sure telling trenchant unmistakable vigorous

Antonyms: equivocal indefinite indistinct insignificant reserved understated unpronounced