unwonted
From Longman Dictionary of Contemporary Englishunwontedun‧wont‧ed /ʌnˈwəʊntɪd $ -ˈwoʊn-/ adjective [only before noun] formalUNUSUAL unusual and not what you expect to happen SYN unaccustomed unwonted freedomExamples from the Corpusunwonted• There was an unwonted gaiety in her manner as if the superintendent had spent the morning swallowing double Scotches.• We do this with unwonted urgency.