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sill Antonyms

Opposite of sill

Looking for antonyms for sill? Sourced from our comprehensive thesaurus, here is a list of opposite words and the exact opposite of sill, organized by relevance and context.
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• noun (Context 1)

A tabular sheet of igneous rock intruded horizontally between and parallel with the existing strata of older rock.

Usage Example

"The Whin dike in northern England is a prominent geological formation composed of ancient dolerite."

Weak
dike

Similar words to sill

Looking for synonyms? Words similar to sill vary depending on the context. Here are a few common synonyms:

ledge
threshold
intrusion
beam
foundation
joist
See all synonyms of sill

Cite this Entry


Wordmom. (2026). Antonyms for Sill. In Wordmom Thesaurus. Retrieved Oct 15, 2026, from https://wordmom.com/antonyms/sill
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