From Longman Dictionary of Contemporary Englishirreplaceableir‧re‧place‧a‧ble /ˌɪrɪˈpleɪsəbəl◂/ adjective ONLYtoo special, valuable, or unusual to be replaced by anything else Works of art were lost, many of them irreplaceable.► see thesaurus at valuable
Examples from the Corpus
irreplaceable• Several works of art were lost, many of them irreplaceable.• Building conservation is environmentally friendly; it is a way of using existing resources for an end-product that is unique and irreplaceable.• By 1922 the team of brilliant men who had governed for the past six years could not but see themselves as irreplaceable.• That Bible contained marginal notes and special references that were irreplaceable.• Inevitably, this will entail losing some of the irreplaceable character of this unique building.• I value the way they accept my orders and the talented, knowledgeable and irreplaceable company agronomist who gives me advice.• Clark said the Army had already lost one irreplaceable man in General Custer.• Fathers have a unique and irreplaceable role to play in child development.• And civilizations hardly ever exchange them: they regard them as irreplaceable values. 