tedious --Merriam-Webster
adjective
te·dious ˈtē-dē-əs
ˈtē-jəs
Synonyms of tedious
: tiresome because of length or dullness : boring
a tedious public ceremony
Etymology
Middle English, from Late Latin taediosus, from
Latin taedium disgust, irksomeness, from taedēre to disgust, weary
First Known Use
15th century, in the meaning defined above