American English

Definition of substantial adjective from the Oxford Advanced American Dictionary

      

    substantial

     adjective
    adjective
    NAmE//səbˈstænʃl//
     
     
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  1. 1large in amount, value, or importance synonym considerable substantial sums of money a substantial change Substantial numbers of people support the reforms. He ate a substantial breakfast. There are substantial differences between the two groups. Their share of the software market is substantial.
  2. 2 [usually before noun] (formal) large and solid; strongly built a substantial house a street of substantial Victorian rowhouses
See the Oxford Advanced Learner's Dictionary entry: substantial