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

• Lexulous
• Wordscraper
• Wordosaur

n. The state of being obsolete—no longer in use; gone into disuse; disused or neglected.

n. The process of becoming obsolete, outmoded or out of date.

n. The state of becoming obsolete.

n. The state or process of becoming obsolete.

n. In entomology, an obsolete part of a mark, stria, etc.: as, a band with a central obsolescence.

n. the process of becoming obsolete; falling into disuse or becoming out of date

"You should accept that fact that this is a new way of life - adapt or look up the word "obsolescence" in the dictionary."

devolution    degeneration   

disappearance    dying    waning    obsoleteness   

acquiescence    adolescence    coalescence    convalescence    essence    evanescence    luminescence    phosphorescence    quintessence    senescence   

ofinterference    inutility    reusability    updating/integration    muchness    vitiation    spoilage    overconsumption    point of view    pleonasm