OPM Disability Retirement for Federal & Postal Workers: Meaninglessness
Without the second added suffix, it remains an adjective; with the addition of the second suffix, it becomes an abstract noun denoting quality and state of being. The combination of the duality if suffixes, altering it from an adjective qualifying a noun (as in, “This meaningless activity”) into an abstract noun standing alone (as in, “The meaninglessness was evident in the manner he lived”) […]