Definition of capital-lettered in US English:

capital-lettered

adjective

  • Characterized or indicated by capital letters, written in capitals; marked out for particular emphasis with, or as if with, capital letters; (hence) significant, important.

Origin

Late 18th century; earliest use found in Elizabeth Gunning (1769–1823), novelist. From capital + letter + -ed.

Pronunciation

capital-lettered

/ˌkapɪtlˈlɛtəd/