SAT Easy
SAT Prep  /  Words  /  Easy  /  rational

rational

/ˈræʃnəl/
English Definition
adj. logical, reasonable
中文释义
理性的,合理的
Example Sentence

The engineer made a rational choice to reinforce the bridge's supports after analyzing the stress data from the past decade.

工程师在分析了过去十年的应力数据后,做出了加固桥梁支撑的理性选择。

Synonyms
Antonyms
irrational illogical
💡
Memory Aid / 记忆技巧
rational (logical)
Know this word? Mark it mastered, or move on.
← Previous Next →

Practice — Definition Match

Which choice best defines “rational”?

  1. A Worthy of attention or notice
  2. B Workable, able to survive
  3. C Logical, reasonable
  4. D Important, meaningful
Show answer

C — Logical, reasonable. “rational” means logical, reasonable.

Practice — Which Word Fits?

Which word means “logical, reasonable”?

  1. A significant
  2. B notable
  3. C viable
  4. D rational
Show answer

D — rational. “rational” means logical, reasonable.

Common questions about “rational”

What does “rational” mean?

rational — logical, reasonable. In Chinese: 理性的,合理的.

How do you pronounce “rational”?

rational is pronounced /ˈræʃnəl/.

How is “rational” used in a sentence?

The engineer made a rational choice to reinforce the bridge's supports after analyzing the stress data from the past decade. (工程师在分析了过去十年的应力数据后,做出了加固桥梁支撑的理性选择。)

What are synonyms for “rational”?

logical, reasonable, sensible — all close in meaning to rational (logical, reasonable).

What is the opposite of “rational”?

irrational, illogical — each the opposite of rational (logical, reasonable).

Is “rational” an SAT vocabulary word?

Yes. rational is on the SAT Prep Easy list — mid-frequency academic words that do get tested. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.

How can I remember “rational”?

rational (logical)

Progress / 学习进度
63%
through SAT Easy
This level: 0 mastered (0% of the level)
The Digital SAT tests vocabulary through Words in Context questions, never as a standalone definition. Learn the word, then use it against a real passage.