Hãy cùng học ý nghĩa và cách sử dụng các tiền tố và hậu tố trong tiếng Anh nhé!
unfriendly không thân thiện
unusual bất thường
unnecessary không cần thiết
unemployed không có việc làm (thất nghiệp)
untidy bừa bộn (also "in a mess")
unkind xấu bụng
unpleasant khó ưa
unhappy bất hạnh
invisible cannot be seen (vô hình)
informal không chính thức. Informal clothes are clothes like jeans and trainers. Formal clothes are things like a suit.
inadequate (= not good enough), e.g. The car park is inadequate for a big supermarket like that.
impolite bất lịch sự
impossible bất khả thi. If something is impossible, you can’t do it. It’s impossible to read with your eyes closed.
impatient someone who is ‘impatient’ wants things to happen now; they cannot wait for things (thiếu kiên nhẫn)
immoral phi đạo đức
illegible impossible to read because the writing is bad
before some adjectives, e.g. dishonest (a ‘dishonest’ person is someone you cannot trust, and often does not tell the truth), and a few verbs, e.g. dislike, disagree.
non-smoking You must not smoke in a non-smoking restaurant.
With some verbs, these prefixes can also mean ‘the opposite of an action’.
The plane appeared in the sky, and then suddenly disappeared behind a cloud.
I locked the door when I left, but then I lost the key and couldn’t unlock it when I got back.
I got dressed (= put on my clothes) and had my breakfast.
I got undressed (= took off my clothes) and got into bed.
I had to pack my suitcase/do my packing (= put everything in it) very quickly, so when I unpacked (= took things out) at the hotel, most of my clothes looked terrible.
|ex (+ noun)||was but now isn't||
An ex-wife is a wife who is now porced.
President Bush is an ex-president of the USA
|half (+ noun or adjective)||50% of something||
Something that cost $10 yesterday and costs 5$ today is half-price.
A half-hour journey is a journey of 30 minutes.
|semi||half||semicolon (dấu chấm phảy), semicircular (hình bán nguyệt)|
|pre (+ noun, adjective, verb)||before||
Pre-school children are too young to go to school.
You nearly always need to pre-heat the oven before you cook something.
|re (+ verb)||again||
To redo something is to do it a second time, and to rewrite something is to write it a second time.
|over (+ noun, verb, adjective)||too much||
My boss is overdoing it at the moment. (= He's working too hard.)
I went to bed very late and I overslept (= slept too long) this morning.
The shop assistant overcharged me. (= She asked me for too much money.)
|under||not enough||undercooked, underworked|
|mis (+ verb)||badly or incorrectly||
I'm afraid I misunderstood what he said.
Two of the students misread the first question.
|anti||against||antibiotic (kháng sinh), antiwar (phản chiến)|
|auto||of or by oneself||autopilot (tự lái), autobiography (tự truyện)|
|bi||two, twice||bicycle (xe đạp hai bánh), bilateral (song phương), biannual (hai lần một năm), bilingual (song ngữ)|
|micro||small||microwave (lò vi sóng), microbiology (vi sinh)|
|mono||one, single||monologue (độc thoại), monotonous (đơn điệu)|
|multi||many||multimedia (đa phương tiện), multinational (đa quốc gia)|