unskilful
adj. 不熟练的；笨拙的
近义词：inept，unskilled，untrained，untalented，incompetent，ham-handed，ham-fisted，gawky，awkward，amateurish，clumsy，
例句
用作形容词(adj.)
- As Ichabod was an unskilful rider, he had much difficulty in keeping his seat.因为伊卡伯是位笨拙的骑士，所以实在很难安坐在马背上的而不掉下来。