tedisome UK /ˈtiː.dɪ.s(ə)m/US /ˈti.di.səm/ adjective1 •(dialect) Characterised or marked by tediousness; wearisome."Is he away?" said Weatherby; "I was beginging to think, he would never go. Once set him down, Rollockson's the most tiresome, tedisome beggar to talk that ever God put breath into!" — 1860 formsmore tedisome · most tedisome