- a structure serving as a support; a base or foundation: The building has a strong understructure.
- any thing, condition, etc., establishing support; a basis: an argument that rests on a sound understructure of knowledge.
Origin of understructure
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for understructure
And I confess that at this close view of the understructure of a polygamous career, I was weak enough to feel scandalized.Captain Macedoine's Daughter
Stan saw a Liberator smack into a bursting shell that exploded against her understructure.
The hair at the back of his neck lifted as his understructure raked across the hatch cover of the Jerry.
By the June of that year the understructure of the Pier was finished, and the rest was advancing with the speed of paper-hanging.Mushroom Town