Simple past tense and past participle of obsolete.(verb)
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Use "obsoleted" in a sentence
"Railroads can boom, then bust, and then even be torn up; a frenzy of highway building can then follow, to slack off in its turn; copper wire can be laid for telephone service, then be replaced by fiber-optic cable (the latter often following railroad grades or highways!); a power distribution grid can be built at great expense, perhaps in turn to be "obsoleted" by cheap photovoltaics or fuel cells ...."
"In addition, to the active stockpile of 5,113 warheads, there are somewhere around 8,000 to 9,000 "obsoleted" nuclear weapons - weapons that will not be kept in good repair, but will be dismantled eventually and their 30 tons or so of weapons grade metal recovered; and another 38 tons of military plutonium that has never been fabricated into a weapon."
"You also never asked about "Cooking Light" which has actually bee "obsoleted" because that site is now rolled into MyRecipes. com."