What does opacous mean?
Opacous means difficult to understand or interpret, especially when language, ideas, or artistic expression resist clear explanation. Its figurative use conveys not merely lack of information but a quality of mystery, ambiguity, or intellectual resistance: an opacous argument may seem intricate or obscure rather than openly confusing. The word can also mean opaque or impervious to light, paralleling its more familiar relative opaque, although this physical sense is uncommon. Opacous is chiefly formal and literary; in ordinary discussion, obscure and unclear are generally more natural choices. Its unusual status and Latin-derived form make it useful in careful or elevated prose, where it suggests something deliberately or mysteriously beyond immediate comprehension.
Difficult to understand or interpret; obscure.
"His opacous explanation concealed more than it revealed."
Chiefly formal and literary; especially common in descriptions of language, writing, ideas, and artistic expression.
Opaque or not transparent.
"The surface remained opacous despite repeated attempts to examine what lay beneath it."
A comparatively rare physical sense; opaque is normally preferred in modern usage.
Opacous captures ideas that resist immediate understanding—an intellectual opacity that rewards careful attention.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does opacous come from?
Opacous comes from Latin opācus, meaning “dark” or “opaque,” a word associated with the root for covering. English borrowed it in the figurative sense of being unclear or obscure. Its relatives include opaque, opacity, and opacify, all developed from the same Latin source.
How opacous is actually used
This is a formal, literary, and comparatively uncommon word. It occurs especially in discussions of writing, ideas, language, or artistic expression, where it conveys deliberate or elusive obscurity.
Easily confused with opacous
Opacous is a rare, chiefly literary word for something obscure, while opaque is the standard term for both literal lack of transparency and figurative lack of clarity.