slowness

名词 slowness:

1. unskillfulness resulting from a lack of training
   同义词：awkwardness, clumsiness, ineptness, ineptitude, maladroitness
2. a rate demonstrating an absence of haste or hurry
   同义词：deliberation, deliberateness, unhurriedness
3. lack of normal development of intellectual capacities
   同义词：retardation, mental retardation, backwardness, subnormality

1. Slowness of the heart rate, usually fewer than60 beats per minute in an adult human being.
   心搏缓慢心律缓慢，通常指成人心跳低于60次每分钟