This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The quality of being weighty

n. The quality or state of being weighty; weight; force; importance; impressiveness.

n. The state or quality of being weighty; ponderousness; heaviness, literally or figuratively; solidity; force; importance.

n. the relative importance granted to something

n. the property of being comparatively great in weight

"I tend to like those pieces best where that weightiness is continued through to the end — Grand Pianola Music, Nixon, Naive and Sentimental Music."

importance   

weight    force    importance    impressiveness   

pass-band    attitudinizing    centroid    fleshiness    polarisation    terribleness    significancy    pleasingness    augustness    expansiveness