Prefixes 是一種affixes, 加在詞語的前面加以改變它的意思, 這樣大概很難說清楚, 請下面的例子吧!
THE MEANINGS OF "NOT"
un-
e.g.unemployed(=without a job)
untidy(=not in order; in a mess)
unpleasant(=horrible)
unlock
unpack
undress
in-
e.g.invisible(=cannot be seen)
inadequate(=not good enough)
這個常使用在源自拉丁文的詞前面
im-
e.g.immoral
impossible
impatient(=wanting something to happen as soon as possible)
這個用在以p或m開頭的詞前面
il-
e.g.illegible(=impossible to read because the writing is bad)
illegal
這個是用在以l開頭的詞前面
ir-
e.g.irresponsible
這個是用在以r開頭的詞前面
dis-
e.g.dishonest
dislike,disagree
re-(=again)
e.g.redo,reopen,replace
over-(=too much)
e.g.overact,overdo,oversleep(睡過頭),overcharge
mis-(=badly or incorrectly)
e.g.misunderstand,misread,mislead
under-(=not enough or not done as well or as much as is necessary)
e.g.undercooked(煮得不夠熟),underpay,under-performing (= not doing as well as he should)
prefixes
有一個詞不得不提,overlook
個人來說,這個詞有點混淆,overlook其實是解作看漏忽略,