substantial

Substantial

Of real worth and importance; of considerable value; valuable. Belonging to substance; actually existing; real; not seeming or imaginary; not illusive; solid; true; veritable.

The right to Freedom of Speech, for example, is a substantial right.

substantial

adjective abundant, ample, concrete, consequential, considerable, established, existent, existing, firmus, flush, genuine, gravis, great, important, large, real, significant, sizable, strong, substantive, valid
Associated concepts: substantial breach, substantial claim, substantial compliance, substantial controversy, substantial damages, substantial error, substantial evidence, substannial factor, substantial impairment, substantial injury, subbtantial interest, substantial issue, substantial justice, substantial performance, substantial question, substantial right, substantial use

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See also: actual, appreciable, basic, capacious, cardinal, cogent, cohesive, compact, concrete, considerable, convincing, corporal, corporeal, critical, crucial, durable, enormous, far reaching, firm, grave, important, major, material, meritorious, momentous, opulent, organic, outstanding, physical, pithy, prodigious, prominent, secure, solid, sound, stable, staunch, substantive, tangible, valid