■ adjective ( ~er , ~est )
1》 not affected by alcohol; not drunk.
2》 serious; thoughtful.
3》 muted in colour.
■ verb
1》 (usu. ~ up ) make or become ~ after drinking alcohol.
2》 make or become serious.
Derivatives
~ing adjective
~ingly adverb
~ly adverb
Origin
ME: from OFr. sobre , from L. sobrius .