uncometary
adjEtymology From un- + cometary.
1
Rare Unlike a comet.
- The failure to see the comet previous to its sudden apparition near the Andromeda Nebula, its uncometary appearance, its peculiar freaks, and final utter disappearance from the heavens […]1899, Monthly Notices of the Royal Astronomical Society:
- The neon lines were fairly intense and are quite uncometary. It has been suggested to me that the cyanogen might have been generated during the fall of the meteorites by a reaction between atmospheric nitrogen and cohenite or carbon.1940, American journal of science, volume 238, page 571: