Definition of comet-like in English:

comet-like

Pronunciation /ˈkɒmɪtlʌɪk/

adverb

  • In a manner likened to that of a comet, especially with reference to sudden appearance, brilliant passage, or destructive effect.

adjective

  • Resembling (that of) a comet (literal and figurative).

Origin

Late 16th century; earliest use found in Michael Drayton (1536–1631), poet. From comet + -like.