say it: suhb-STAN-shuhl
substantial is an adjective meaning "of considerable importance, size, or worth". It carries 6 recorded senses.
of considerable importance, size, or worth
“won by a substantial margin”
of or relating to the real nature or essential elements of something
“a substantial argument”
having substance or capable of being treated as fact; not imaginary
“the substantial world”
“a mere dream, neither substantial nor practical”
“The wind was violent and felt substantial enough to lean against”
providing abundant nourishment
“a hearty meal”
“good solid food”
“ate a substantial breakfast”
“four square meals a day”
Definitions, synonyms and semantic relations for substantial come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.