看英文的解释填入单词 如some,an amount of something :(certain)

看英文的解释填入单词 如some,an amount of something :(certain)要填的词：useful useless careful careless thoughtful thoughtless helpful helpless restful restless1.having no purpose:( )2.thinking of othes:( )3.moving around a lot:not relaxed:( )4.taking time and trouble:thinking about things:( )5.not able to do anything:( )6.calm,peaceful,relaxed:( )7.not thinking of others:( )