laggard

名词 laggard:

1. someone who takes more time than necessary; someone who lags behind
   同义词：dawdler, drone, lagger, trailer, poke

形容词 laggard:

1. inclined to waste time and lag behind
   同义词：dilatory
2. wasting time
   同义词：dilatory, poky, pokey

lag.gard

n.（名词）
One that lags; a straggler.
落后者；落伍者
adj.（形容词）
Hanging back or falling behind; dilatory.See Synonyms at slow
畏缩不前的或落后的；迟误拖拉的参见 slow

【引伸】
lag.gardly
adv.（副词）
lag.gardness
n.（名词）