tedium1 of 1noun/ˈtiːdiəm/Forms:tediums1dullness owing to length or slownessSynonyms: tediousnesstiresomeness2the state of being wearied or bored due to repetitive or unchanging activitiesAttending the same meetings week after week brought a sense of tedium she couldn't shake off.The tedium of the daily routine was starting to get to him, making him crave a change.Synonyms: ennuiboredom