THESAURUS

Greywacke Synonyms & Antonyms

(geology) A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.

Synonyms

Antonyms

Related Words

Use the Word in Context

Related-word data is supplemented by the Datamuse API. Datamuse results are suggestions, not automatic replacements.