drab
adjective disapproving uk/dræb/ us/dræb/ drabber | drabbest
（尤指外表）单调的，乏味的，缺乏色彩的，平淡的
boring, especially in appearance; having little colour and excitement
She walked through the city centre with its drab, grey buildings and felt depressed. 走过市中心那些单调的灰色建筑物，她心里感觉很压抑。
I feel so drab in this grey uniform. 穿这套灰制服我觉得很没生气。