wearisome
Concise Oxford English Dictionary © 2008 Oxford University Press:
wearisome /ˈwɪərɪs(ə)m/
▶adjective causing one to feel tired or bored; tiresome or tedious.
– derivatives
wearisomely adverb,
wearisomeness noun.
wearisomely adverb,
wearisomeness noun.
'wearisome' also found in these Oxford entries:

