- awkwardness, clumsiness, ineptness, ineptitude, maladroitness, slowness - unskillfulness resulting from a lack of training
--1 is a kind of unskillfulness
- slowness, deliberation, deliberateness, unhurriedness - a rate demonstrating an absence of haste or hurry
--2 is a kind of pace, rate
--2 has particulars: leisureliness; dilatoriness, procrastination - retardation, mental retardation, backwardness, slowness, subnormality - lack of normal development of intellectual capacities
--3 is a kind of stupidity
--3 has particulars:abnormality, mental defectiveness; moronity, mental deficiency; idiocy, amentia; imbecility; mongolism, mongolianism, Down's syndrome, Down syndrome, trisomy 21