| 例句 |
obsolescencenoun the condition of no longer being used or useful; the condition of being obsoletethe obsolescence of the old technology Once a useful tool, slide rules have fallen into obsolescence. antiquation, datedness, obsoleteness, old-fashionednessage, agedness, ancientness, antiquity, hoarinessfustinessagelessness currency, currentness, freshness, modernity, modernness, novelty, recentnessnewness ca. 1832 |