1. 形容詞
   更無聊的, 更枯燥乏味的
   更無趣的
   更單調的, 更令人生厭的
   更不鮮明的, 更不明顯的
   更隱約的, 更模糊的
   更暗淡的, 更陰沉的
   更昏暗的
   更笨的, 更愚笨的
   更愚鈍的
   更遲鈍的, 更不敏感的
   

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   同義字詞
   blunt,blunted,dulled,obtuse
   arid,boring,colorless,drab,dreary,drudging,dry,dusty,flat,heavy,ho-hum,humdrum,jading,jejune,leaden,mind-numbing,monochromatic,monotonous,numbing,old,pedestrian,ponderous,slow,stale,stodgy,stuffy,stupid,tame,tedious,tiresome,tiring,uninteresting,wearisome,weary,wearying
   beclouded,clouded,cloudy,hazed,hazy,heavy,lowering,louring,overcast,overclouded
   dim,dulled,flat,lusterless,matte,mat
   dulled,faded,light,pale,pastel,washed-out,washy
   brain-dead,brainless,dense,doltish,dopey,dopy,dorky,dumb,fatuous,half-witted,mindless,oafish,obtuse,opaque,pinheaded,senseless,simple,slow,stupid,thick,thickheaded,unintelligent,vacuous,weak-minded,witless
   gentle,low,quiet,soft
   inactive,inert,lethargic,quiescent,sleepy,sluggish,torpid
   

例句

1. The juvenile is a duller green colour.
2. I do like the duller look of the motor.
3. Or possibly, a nice light duller black?
4. The record would have been much duller .
5. Life was now both duller and more complex.
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