irrational

B2 CET-4 大学 FREQ #11736 ★☆☆☆☆

n. 无理数 a. 无理性的, 不合理的

发音

其它 /ɪˈɹæʃ.(ə.)nəl/

词形变化

irrationals 复数 irrationals more irrational 比较级 most irrational 最高级

教材释义与例句

名词

无理数

形容词

不合理的；无理性的；荒谬的

释义与例句

n.
  1. 1.

    A real number that can not be expressed as the quotient of two integers, an irrational number.

    数学
adj. B2
  1. 1.

    Not rational; unfounded, nonsensical or wrong-headed.

    不合理

    an irrational decision

    Where the Joker preys on our fears of random, irrational acts of terror, Bane has an all-consuming, dictatorial agenda that’s more stable and permanent, a New World Order that’s been planned out with the precision of a military coup.

  2. 2.

    Of a real number, that cannot be written as the ratio of two integers.

    无理数

    数学

    The number π is irrational.

词汇关系

名词

同义词 1

irrational number

上位词 2

real real number

下位词 2

algebraic number transcendental number
形容词

反义词 1

rational

近义相关 5

blind superstitious non-rational reasonless unreasoning

参见 5

insane unreasonable illogical incoherent unlogical

相关短语

irrational number [计] 无理数 [化] 无理数 irrational numbers

词源

From Latin irratiōnālis, from ir- + ratiōnālis.

来源：wiktionary