cracklessly

English

Etymology

From crackless +‎ -ly.

Adverb

cracklessly (comparative more cracklessly, superlative most cracklessly)

in a crackless manner
- 1932, American Society of Naval Engineers, Journal of the American Society of Naval Engineers, Volume 44, Issue 4
  "The ordinary tests for ductility do not give very much information of the ability of a metal to undergo such localized plastic readjustment cracklessly."