substantial

adj.

[1]	material , significant , considerable , significant , great , worthwhile , consequential , ample , goodly , respectable , abundant , generous , big , large , sizeable , major , (Colloq) tidy , healthy
[2]	strong , substantive , solid , well-built , durable , sound , stout , sturdy , big , large , massive , huge , sizeable , impressive , vast , numerous , numberless
[3]	well-founded , real , material , sound , weighty , solid , well-established , telling , good , valid , actual
[4]	wealthy , hearty , satisfying , well-to-do , rich , solid , square , affluent , prosperous , profitable , successful , landed , propertied
[5]	solid , strong