[ suhb-stan-shuhl ]
See synonyms for substantial on
  1. of ample or considerable amount, quantity, size, etc.: a substantial sum of money.

  2. of a corporeal or material nature; tangible; real.

  1. of solid character or quality; firm, stout, or strong: a substantial physique.

  2. basic or essential; fundamental: two stories in substantial agreement.

  3. wealthy or influential: one of the substantial men of the town.

  4. of real worth, value, or effect: substantial reasons.

  5. relating to the substance, matter, or material of a thing.

  6. of or relating to the essence of a thing: the substantial parts of the ruling.

  7. existing as or being a substance; having independent existence: a substantial being.

  8. Philosophy. relating to or of the nature of substance or reality rather than an accident or attribute.

  1. something substantial.

Origin of substantial

First recorded in 1300–50; Middle English substancial, from Late Latin substantiālis, equivalent to Latin substanti(a) substance + -ālis -al1

Other words for substantial

Opposites for substantial

Other words from substantial

  • sub·stan·ti·al·i·ty [suhb-stan-shee-al-i-tee], /səbˌstæn ʃiˈæl ɪ ti/, sub·stan·tial·ness, noun
  • sub·stan·tial·ly, adverb
  • non·sub·stan·tial, adjective
  • non·sub·stan·tial·ness, noun
  • non·sub·stan·ti·al·i·ty, noun
  • pre·sub·stan·tial, adjective
  • su·per·sub·stan·tial, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use substantial in a sentence

British Dictionary definitions for substantial


/ (səbˈstænʃəl) /

  1. of a considerable size or value: substantial funds

  2. worthwhile; important: a substantial reform

  1. having wealth or importance

  2. (of food or a meal) sufficient and nourishing

  3. solid or strong in construction, quality, or character: a substantial door

  4. real; actual; true: the evidence is substantial

  5. of or relating to the basic or fundamental substance or aspects of a thing

  6. philosophy of or relating to substance rather than to attributes, accidents, or modifications

Derived forms of substantial

  • substantiality (səbˌstænʃɪˈælɪtɪ) or substantialness, noun
  • substantially, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012