Definition for Substantial:

• Belonging to substance; actually existing; real; as, substantial life.

Synonyms for Substantial:

• adj.

  •close (adjective)
  • neck and neck.
  •comfortable (adjective)
  • well-heeled.
  •dense (adjective)
  • close-knit,
  • impenetrable.
  •durable (adjective)
  • persistent.
  •goodly (adjective)
  • goodly.
  •hulky (adjective)
  • hulky.
  •important (adjective)
  • crucial,
  • vital,
  • key,
  • central,
  • fundamental.
  •important, ample (adjective)
  • steady,
  • well-built,
  • worthwhile,
  • heavyweight,
  • superabundant.
  •material (adjective)
  • objective,
  • natural,
  • nonspiritual,
  • worldly.
  •material, real (adjective)
  • positive,
  • existent,
  • honest-to-god,
  • righteous,
  • legit,
  • true,
  • card-carrying.
  •real (adjective)
  • genuine,
  • authentic,
  • factual,
  • sincere,
  • veritable,
  • honest.
  •rich (adjective)
  • solvent,
  • well.
  •solid (adjective)
  • hard,
  • set.
  •sound (adjective)
  • well-constructed.
  •stable (adjective)
  • well-founded.
  •strong (adjective)
  • well-made.
  •substantial (adjective)
  • important,
  • immanent,
  • united,
  • substantive.
  •succinct (adjective)
  • pithy.

• n.

  •
  • enormous,
  • high.
  •
  • celebratory,
  • alfresco,
  • body,
  • frugal,
  • matter,
  • light,
  • slap-up.
  •
  • windfall,
  • wealth,
  • sure,
  • pile,
  • mint,
  • continue,
  • fortune,
  • megabucks,
  • Payout.
  •
  • immense,
  • generous,
  • give,
  • king-size,
  • vast,
  • rich,
  • wide.
  •
  • deep,
  • humorlessly,
  • funereal.
  •
  • stout.
  •
  • extraordinary,
  • valuable,
  • principal.
  •
  • visible.
  •
  • affluent,
  • well-to-do,
  • opulent.
  •substantial (noun)
  • in essence,
  • essential,
  • wholesome,
  • satisfying.

• Other synonyms:

  •
  • incalculable,
  • unprecedented,
  • substantially,
  • massive,
  • unshakable,
  • goodish,
  • multitudinous,
  • liberal,
  • lavish,
  • myriad,
  • galore,
  • stolid,
  • enormously,
  • officious,
  • profuse,
  • heavily,
  • tremendous,
  • widely,
  • astronomically,
  • plenteous,
  • staid,
  • numberless,
  • massed,
  • unnumbered,
  • plenitudinous,
  • huge,
  • bewildering,
  • extensive,
  • bounteous,
  • inestimable.
  •
  • humorless,
  • sensible,
  • reliable,
  • hardy,
  • historic,
  • solemn,
  • sober,
  • fair,
  • mass,
  • way,
  • bountiful,
  • untold.
  •
  • copious,
  • abundant,
  • plentiful,
  • monumental.
  •
  • voluminous.
  •
  • serious.
  •genuine
  • valid.
  •nutritious
  • healthful.
  •palpable
  • tactile.
  •white-collar
  • middle class.

Paraphrases for Substantial:

• Independent

  • Adjective
    profound, specific, compelling, outstanding, lengthy, clear, full, very, sound, net, proper.
  • Proper noun, singular
    notices.

• Other Related

  • Adjective
    crucial, appreciable, enormous, sizable, tremendous, massive, fundamental, noticeable, remarkable, tangible, vast, significant, immense, large-scale, drastic, prominent, solid, voluminous, hefty, thorough, sufficient, formidable, far-reaching, wide-ranging, momentous, genuine, noteworthy, ample, abundant, impressive, much, colossal, weighty, generous, inconsiderable, radical, widespread, negligible, numerous, overwhelming, monumental, basic, intense, non-negligible, insignificant, detailed, substantive, perceptible, consistent, sizeable, decisive, deep, pivotal, integral, discernible, intensive, measurable, important, grave, daunting, vigorous, intrinsic, phenomenal, strenuous, influential, obvious, respectable, rich, consequential, consequent, adequate, central, mammoth, well-founded, substantiated, reasonable, gigantic, palpable, sweeping, conspicuous, striking, sustainable, ambitious, spectacular, visible, definite, sustained, handsome, steep, staggering, true, pertinent, great, terrific, bulky, many, discernable, larger, high-profile, long, forceful, plentiful, factual, informative, large, major, invaluable, distinct.
  • Proper noun, singular
    significant, substantive, important, great, large, major.
  • Noun, singular or mass
    significant, sizeable, important.

Antonyms for Substantial:

• adj.

  • all
    insubstantial.
  • important, ample
    mental, broken, unsubstantial, minor, impoverished, useless, small, trivial, meaningless, insignificant, worthless, spiritual, intermittent, unimportant, selfish, poor, inconsiderable, slight, ethereal, little, tiny, weak, untrustworthy, miniature, soft.
  • Other antonyms:
    impalpable, reported, insensible, little bitty, mini, unknown, meager, unsound, anonymous, Discarnate, imperceptible, visionary, conceived, slender, supposed, supposititious, dwarf, nameless, fabulous, fanciful, formless, invisible, pint-size, immaterial, uncelebrated, illusory, Picayunish, tenuous, imaginary, unessential, disembodied, half-pint, untrue, petite, theoretical, diaphanous, marginal, unnoticeable, hypothetical, unwholesome, feigned, vaporous, obscure, inessential, thin.