from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Without thunder.
from the GNU version of the Collaborative International Dictionary of English
- adj. Without thunder or noise.
from The Century Dictionary and Cyclopedia
- Unattended by thunder or loud noise.
It was a land of thunderless lightning -- lightning from a clear sky, flashing here and there without warning or excuse.
Then came there that flash which is recorded in old traditions as the fourth of the flashes of thunderless lightnings, after the passing of which, hundreds of fakirs that had been awaiting it saw nothing further on this earth.
His wit and sarcasm were generally too good-natured to provoke even their unfortunate objects, playing all over his editorials like the thunderless lightnings which quiver along the horizon of a night of summer calmness; but at times his indignation launched them like bolts from heaven.