weighty

weighty
    adj 1: having relatively great weight; heavy; "a weighty load";
           "a weighty package" [ant: {weightless}]
    2: powerfully persuasive; "a cogent argument"; "a telling
       presentation"; "a weighty argument" [syn: {cogent},
       {telling}, {weighty}]
    3: of great gravity or crucial import; requiring serious
       thought; "grave responsibilities"; "faced a grave decision in
       a time of crisis"; "a grievous fault"; "heavy matters of
       state"; "the weighty matters to be discussed at the peace
       conference" [syn: {grave}, {grievous}, {heavy}, {weighty}]
    4: weighing heavily on the spirit; causing anxiety or worry;
       "weighty problems"
    5: excessively fat; "a weighty man" [syn: {corpulent}, {obese},
       {weighty}, {rotund}]
    

Weighty \Weight"y\, a. [Compar. {Weightier}; superl.
   {Weightiest}.]
   [1913 Webster]
   1. Having weight; heavy; ponderous; as, a weighty body.
      [1913 Webster]

   2. Adapted to turn the balance in the mind, or to convince;
      important; forcible; serious; momentous. "For sundry
      weighty reasons." --Shak.
      [1913 Webster]

            Let me have your advice in a weighty affair.
                                                  --Swift.
      [1913 Webster]

   3. Rigorous; severe; afflictive. [R.] "Attend our weightier
      judgment." --Shak.
      [1913 Webster]

   Syn: Heavy; ponderous; burdensome; onerous; forcible;
        momentous; efficacious; impressive; cogent.
        [1913 Webster]
    

224 Moby Thesaurus words for "weighty":
      Gargantuan, absolute, adducible, admissible, amplitudinous,
      ascendant, astronomical, attestative, attestive, authentic,
      authoritarian, authoritative, authorized, autocratic,
      awe-inspiring, awesome, based on, big, binding, boundless, bulky,
      burdensome, certain, charismatic, charming, circumstantial,
      clothed with authority, cogent, colossal, commanding, competent,
      conclusive, consequential, considerable, consistent, controlling,
      convincing, corpulent, cosmic, cumbersome, cumbrous, cumulative,
      damning, decisive, decorous, demanding, demure, determinative,
      dignified, documentary, documented, dominant, duly constituted,
      earnest, effective, effectual, efficacious, elevated, eminent,
      empowered, enchanting, enormous, estimable, evidential,
      evidentiary, ex officio, ex parte, exacting, exhausting, exigent,
      extensive, eye-witness, factual, fat, fatal, fateful, final,
      firsthand, fleshy, formal, formidable, founded on, frowning,
      galactic, gigantic, good, governing, grand, grave, great, grievous,
      grim, grim-faced, grim-visaged, grinding, gross, grounded on,
      harsh, hearsay, heavy, heavyweight, hefty, hegemonic, hegemonistic,
      huge, immeasurable, immense, imperative, implicit, important,
      imposing, incontrovertible, indicative, indisputable, infinite,
      influential, inspiring, irrefutable, irresistible, just, king-size,
      large, lawful, leaden, leading, legal, legitimate, lofty, logical,
      long-faced, magnetic, majestic, mammoth, massive, massy, material,
      meaningful, mighty, momentous, monocratic, monster, monstrous,
      monumental, mountainous, moving, no-nonsense, noble, nuncupative,
      obese, official, onerous, oppressive, outsize, overburdensome,
      overgrown, overweight, overwhelming, personable, persuasive,
      ponderous, portentous, portly, potent, powerful, preeminent,
      prestigious, presumptive, probative, prodigious, prominent,
      puissant, ranking, reliable, reputable, ruling, sedate,
      self-consistent, senior, serious, severe, significant, sizable,
      sober, sober-minded, sobersided, solemn, solid, somber, sound,
      spacious, staid, stately, stone-faced, stout, straight-faced,
      strong, stupendous, suasive, sublime, substantial, sufficient,
      suggestive, superincumbent, superior, supreme, sure, symptomatic,
      taxing, telling, thoughtful, titanic, totalitarian, tough,
      tremendous, tyrannous, unsmiling, valid, vast, voluminous, wearing,
      wearying, well-founded, well-grounded, winning