形容词的否定(反义词)★加前缀一.在单词前加‘un’→uncomfortable→unhappy→unnecessary→unimportant→unfriendly→unwelcome→unable→uncommon→unsuccessful→unexcited→unhealthy→unpopular→unsuitable→ungrateful→unkind→unlikely→unsafe(dangerous)→unhelpful→unusual→unwilling→unpleasant→unreal→unlucky→unluckily→untidy二.在单词前加‘dis’honest→dishonest三.在p,b,m开头的形容词前加‘im’→impossible→impolite(rude)→impatient四.在单词前加‘in’1.correct→incorrect→incorrectly3.expensive→inexpensive(cheap)五.在r开头的形容词前加‘ir’regular→irregular★改后缀→careless→carelessly→useless★不一样的单词1.boring→interesting→expensive3.closed→open→far→hot→bright/light→difficult/quick→slow/quickly→slowly→light→full→small→short→weak→oldcorrect→wrong→safe→clean→full→quiet→hard→mean→falseslim→fat→female