I don't believe "element" has an antonym.
An antonym for "girder," which refers to a large beam used in construction to support weight, could be "void" or "space." While "girder" implies a structural element that provides support, its antonyms suggest an absence of structure or support. Other possible antonyms might include "lightweight" or "non-supporting element," depending on the context.
Antonyms
antonyms
antonyms
what isbrief of antonyms
What are the antonyms for cavernous
antonyms
Antonyms for "die" include:live
antonyms for said
yes antonyms are opposite
antonyms
The antonyms of dirty is clean