Definition of subcelestial in US English:

subcelestial

adjective

  • 1Existing below or beneath a heavenly or ethereal realm; material (as opposed to ethereal). Now rare or historical.

  • 2In weakened sense: earthly, mundane, inferior. Compare "sublunary". Now rare (chiefly archaic and poetic).

  • 3Astronomy. Situated or occurring beneath the celestial sphere, specifically on the earth directly beneath the zenith.

noun

  • A subcelestial entity or being. Also (with the): such beings collectively.

Origin

Mid 16th century; earliest use found in Richard Eden (c1520–1576), translator. From sub- + celestial.

Pronunciation

subcelestial

/ˌsʌbsəˈlɛstɪəl/