unputdownable
From Longman Dictionary of Contemporary Englishunputdownableun‧put‧down‧a‧ble /ˌʌnpʊtˈdaʊnəbəl/ adjective British English an unputdownable book is very interesting and excitingExamples from the Corpusunputdownable• This book might be an unputdownable expose of London's underworld, but its moral message is highly dubious.