unputdownable

adj (infml 口) (of a book, etc) so interesting or absorbing that the reader is reluctant to stop reading until he has finished it （指书等）爱不忍释的, 不忍释手的.

unpractised, unprecedented, unprecedentedly, unpredictable, unprejudiced, unpremeditated, unprepossessing, unpretentious, unprincipled, unprintable, unproductive, unprofessional, unprofessionally, unprofitable, unpromising, unprompted, unpronounceable, unprovided, unprovoked, unpunished, unqualified, unquestionable, unquestionably, unquestioned, unquestioning, unquestioningly, unquiet, unquote, unravel, unread, unreadable, unreadiness, unreal, unrealistic, unreality, unreasonable, unreasonably, unreasoning, unrecognized, unreel,