ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod
unprofitable: P. and V. ἀσύμφορος.
stale, insipid: P. ἕωλος.