wearisome adj. + Add to list US //ˈwɪɹisəm// UK //wˈeəɹisˌʌm// weari·some SynonymsEtymology Synonyms boringdeadeningdullho humirksomeslowtedioustiresomeOriginMEwerisom→ENwearisome From Middle English werisom, equivalent to weary + -some.