substantial

US /səbˈstæn.ʃəl/
UK /səbˈstæn.ʃəl/
"substantial" picture
1.

of considerable importance, size, or worth

:
•
The company made a substantial profit this quarter.
•
She received a substantial inheritance from her grandmother.
:
considerablesizablesignificantamplelarge
:
insignificantminortriflingnegligibleslight
2.

real and tangible rather than imaginary

:
•
The evidence presented was substantial and convincing.
•
They needed substantial proof to proceed with the case.
:
realtangibleconcretematerialactual
:
imaginaryunrealillusoryfictitiousabstract
3.

strong, solid, or sturdy

:
•
The old house had substantial stone walls.
•
They built a substantial bridge that could withstand floods.
:
sturdysolidrobustdurablestrong
:
flimsyweakfragiledelicateunstable
:
substantially