Definify.com
Webster 1913 Edition
Weightiness
Weight′i-ness
,Noun.
The quality or state of being weighty; weight; force; importance; impressiveness.
Webster 1828 Edition
Weightiness
WEIGHTINESS
,Noun.
1.
Ponderousness; gravity; heaviness.2.
Solidity; force; impressiveness; power of convincing; as the weightiness of an argument.3.
Importance.