(as) dull as dishwater

US /əz dʌl əz ˈdɪʃˌwɔtər/
UK /əz dʌl əz ˈdɪʃˌwɔtər/
"(as) dull as dishwater" picture
1.

ممل جدًا, عديم الفائدة

very boring or uninteresting

:
The movie was as dull as dishwater, I almost fell asleep.
كان الفيلم مملًا جدًا، كدت أنام.
His presentation was as dull as dishwater, full of facts but no passion.
كان عرضه مملًا جدًا، مليئًا بالحقائق ولكن بدون شغف.