1 عمومی:: کندذهن، کدر، ملال آور، راکد، مات، متاثر، خسته کننده، كودن، احمق، كند كردن، تار، کسل کننده، گرفته، كند، گرفته، بی مشتری، کسالت آور، راكد، کم رنگ
شبکه مترجمین ایران
1 general:: In addition to the idiom beginning with DULL, Also see NEVER A DULL MOMENT.
American Heritage Idioms
2 general:: adj. VERBS appear, be, look, seem, sound | become, get The work gets a bit dull at times. | make sth The long lectures made the afternoon dull. | find sth ADV. deadly, extremely, stupefyingly, very The film was long and deadly dull. | a bit, a little, fairly, pretty, rather, somewhat | disappointingly
Oxford Collocations Dictionary
3 general:: adj. boring: It was a dull speech he gave today. adj. not shinny: The car surface was dull.
Simple Definitions