moment, minute, instant

名詞 instant:

1. a very short time (as the time it takes the eye blink or the heart to beat)
   同義詞：blink of an eye, flash, heartbeat, jiffy, split second, trice, twinkling, wink, New York minute
2. a particular point in time
   同義詞：moment, minute, second

形容詞 instant:

1. occurring with no delay
   同義詞：instantaneous
2. in or of the present month
   同義詞：inst
3. demanding attention
   同義詞：clamant, crying, exigent, insistent

1. I don't like to drink instant coffee.
   我不喜歡喝速溶咖啡。
2. I took an instant dislike to him.
   我一見他就不喜歡。
3. I'll be back in an instant.
   我馬上就回來。

in.stant

n.Abbr. inst.（名詞）縮寫 inst.
An almost imperceptible space of time.See Synonyms at moment
瞬間，頃刻：幾乎覺察不到的時間段參見 moment
A particular time:
此刻，剎那：
例句：
Tell me the instant they arrive.
告訴我他們到的時間

The current month:
當月：
例句：
your letter of the 5th instant.
你本月5日的信

A food or beverage designed for quick preparation.
速食食品，即溶飲料：經(jīng)過簡短準備就可食用的食品或飲料
adj.Abbr. inst.（形容詞）縮寫 inst.
Occurring at once; immediate:
立即的；馬上的：
例句：
instant gratification.
瞬間產(chǎn)生的喜悅

Imperative; urgent:
緊迫的；急迫的：
例句：
an instant need.
急需

Now under consideration; present.
正在考慮的；目前的

Commercially prepared or processed for quick and easy final preparation:
速食的：預先準備或加工好以便迅速簡便地做好：
例句：
an instant cake mix.
配好的做糕點的材料

Readily soluble in water:
速溶的：
例句：
instant coffee; instant powdered milk.
速溶咖啡；速溶奶粉

Appearing, done, or taking place with or as if with maximum quickness and ease:
即刻產(chǎn)生的：出現(xiàn)過的或加工過的，或容易能夠在最快速度生產(chǎn)的：
例句：
.She had the gift of instant intimacy.(Sylvia Jukes Morris)
.她善于立刻與別人打成一片.(西爾維亞·朱克斯·莫里斯)

adv.（副詞）
At once; instantly.
馬上；立刻

來源：
Middle English
中古英語
from Old French
源自 古法語
from Latin onst3ns onstant- [present] [present participle of] onst3re [to approach]
源自 拉丁語 onst3ns onstant- [當前的] [] onst3re的現(xiàn)在分詞 [接近]
in- [on] * see in- 2
in- [在…上] *參見 in-2
st3re [to stand] * see st3-
st3re [站立] *參見 st3-

【引伸】
in.stantness
n.（名詞）