so lacking in interest as to cause mental weariness“a boring evening with uninteresting people”“the deadening effect of some routine tasks”“a dull play”“his competent but dull performance”“a ho-hum speaker who couldn't capture their attention”“what an irksome task the writing of long letters is — Edmund Burke”“tedious days on the train”“the tiresome chirping of a cricket — Mark Twain”“other people's dreams are dreadfully wearisome”Synonyms: boringdeadeningdullirksomeslowtedioustiresomewearisome