unactinic

Adjective

unactinic (not comparable)

1. Not actinic.
   • If the bottles are new, however, or the nature of their previous contents exactly known, the dispenser will sometimes prefer them even to the best unactinic glass in existence.1884, American Druggist, volume 13, page 233
   • Every photographer knows quite well how perfectly the vision accommodates itself, in about half an hour, to the feeble unactinic light of the dark-room.1917, Camera Craft, volume 24, page 50