1) Exceptional(例外的,优秀的)//exceptionable(可反对的,令人反感的)
2) Instigate(煽动,教唆)//castigate(惩罚,申斥)
3) Ingenuous(真诚的,天真的)//ingenious(聪明的,有独创性的)
4) Daunt(恐吓)//gaunt(憔悴的)//taunt(炫耀)//vaunt(吹嘘)//flaunt(招摇)
5) Slipshod(邋遢的,衣衫不整的)//slapstick(滑稽剧)
6) Cursory(马虎的,草率的)//cursive(草书的)//discursive(散漫的)
7) Immanent(内在的)//imminent(即将来临的)//eminent(杰出的)//prominent(重要的,杰出的)
8) Functionary(公职人员,公务员)//perfunctory(马虎的)
9) Potent(强有力的)//portent(恶兆的)//portend(预示)
10) Contemptible(被鄙视的,值得鄙视的,卑鄙的)//contemptuous(表现出鄙视的)
11) Appreciative(理解的,感激的)//appreciable(大量的,壮观的)
12)Considerate(体谅的,考虑周到的)//considerable(可观的,大量的)
13) indigent(贫穷的)//indigenous(本土的,土生土长的)
14) indolent(懒惰的)//insolent(傲慢的)//redolent(芳香的,唤起回忆的)
15) compunction(懊悔)//compunctious(懊悔的)//compound(复合,加剧)
16) discrimination(区别,歧视)//incrimination(牵连)//recrimination(反责)
17) pejorative(贬低的)//ameliorative(改良的)
18) tenuous单薄的,脆弱的)//tenacious(坚韧的)//tenable(站得住脚的)
19) venereal disease(性病//venerable(可敬的,令人起敬的)
20) benign(良性的)//malign(恶性的)