meaningless Antonyms

meaningful significant material prominent purposeful referential refill semiotic seminal serious signal smart productive pressing pregnant meaning momentous numerary numerative outstanding over paramount pathognomonic pivotal portentous special substantial substantive criticality climactic life-or-death newsworthiness nonsignificant far-reaching supportive pre-eminent suggestively world-shaking of the essence all important influential suggestive symbolical symbolistic symbological urgent useful valuable vital weighty