The action of darkening or fact of being darkened, as with a cloud; obscuration. / (medicine, specifically) Obscuration or clouding of the mind or faculties.

plural of obnubilation

(obsolete) Covered or darkened as with a cloud; overclouded; obscured.

(obsolete) To obscure, to shadow. / To make cloudy.

present participle of obnubilate

Third-person singular simple present indicative form of obnubilate

(literally and figuratively) Obscured; dimmed or hidden with or as if with a cloud.

simple past tense and past participle of obnubilate

(obsolete, rare) Overclouded, cloudy.