The state or condition of being priceless; very high value.(noun)
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Use "pricelessness" in a sentence
"I don't wish to romanticize either the "pricelessness" of domesticity or the econometrics of the workplace."
"I am nearly speechless with the pricelessness of this."
"He had published “The wilderness and its place in forest recreational policy,” Journal of Forestry, 19: 718-721, 1921, and it is plain from other of his previous writings that he was becoming much aware of the pricelessness of unexploited outdoor areas."