stupid

/ˈstjuːpɪd/ (bre, ipa) · /ˈstuːpɪd/ (ame, ipa) · /ˈstü-pəd ˈstyü-/ (ame, mw) · /ˈstjuː.pɪd/ (bre, ipa) · /ˈstuː.pɪd/ (ame, ipa)

stupid — adjective

  • stupidpositive
  • more stupidcomparative
  • most stupidsuperlative

1. describes a person, action, or decision that shows a lack of common sense and is

1.形容詞A2
釋義

describes a person, action, or decision that shows a lack of common sense and is likely to cause problems or embarrassment

例句

Paloma thought it was a stupid idea to walk home alone after midnight.

it + be + stupid + to-infinitive structure

Brooke felt really stupid when she realised she had left her bag on the bus.

feel + stupid + when-clause

同義詞
  • silly

    less harsh and often used playfully or about trivial matters

  • foolish

    more formal; implies a lack of wisdom rather than intelligence

  • dumb

    informal, mainly American; similar strength but slightly less insulting

  • unwise

    formal; focuses on poor judgement in a specific decision

反義詞
  • clever

    suggests quick thinking and good judgement

  • sensible

    shows practical wisdom and common sense

文法句型

it + be + stupid + of + person + to-infinitive

it + be + stupid + that-clause

用法筆記

Common in both casual and general speech, but in formal writing alternatives such as 'foolish' or 'unwise' are often preferred because 'stupid' can sound harsh or childish.

常見錯誤

❌I felt very stupidly when I forgot the answer.
✅I felt very stupid when I forgot the answer.
💡after linking verbs like 'feel', use the adjective 'stupid', not the adverb 'stupidly'.

2. making you feel annoyed or frustrated, especially because a machine, object, or

2.形容詞B1
釋義

making you feel annoyed or frustrated, especially because a machine, object, or situation keeps causing problems or does not work as it should

例句

The stupid printer ran out of ink right before Sora's deadline.

attributive: the + stupid + [faulty device]

Reuben's phone keeps freezing, and this stupid thing loses all his photos.

同義詞
  • annoying

    milder and more neutral; lacks the emotional frustration of 'stupid'

  • frustrating

    focuses on the feeling of being blocked from achieving something

  • ridiculous

    stronger; emphasises how unreasonable the situation seems

反義詞
  • helpful

    describes something that works well or assists you

  • cooperative

    suggests a situation or object behaves as expected

文法句型

the + stupid + noun

用法筆記

This sense is almost always used before a noun (attributive), and the noun refers to an inanimate object or situation — never to a person. Using it with a person would switch the meaning to sense 1 (NOT VERY SMART).

常見錯誤

❌My boss is so stupid today — he keeps interrupting me.' (unclear which sense)
✅This stupid computer keeps crashing on me.
💡for the ANNOYING sense, the subject must be an object or situation, not a person.

3. unable to think clearly, concentrate, or react normally because you are extremel

3.形容詞B2
釋義

unable to think clearly, concentrate, or react normally because you are extremely tired, in shock, or have received a blow to the head

例句

After studying all night, Vikram felt too stupid to answer even simple questions.

feel + too + stupid + to-infinitive

Mizuki sat on the bench with a stupid expression, unable to move after the race.

collocation: with a stupid expression

同義詞
  • dazed

    focuses on confusion and inability to respond; less judgemental

  • groggy

    suggests half-asleep or recovering from illness; informal

  • stunned

    implies shock or amazement as the cause

反義詞
  • alert

    fully awake and able to think clearly

  • clear-headed

    able to think logically without confusion

文法句型

feel + stupid

be + stupid + with + noun

look + stupid

用法筆記

Predicative only — this sense is used after linking verbs (feel, look, be, go) and cannot appear before a noun. 'A stupid student' would be interpreted as sense 1. Distinguish from sense 1 by context: sense 3 is temporary, caused by fatigue or shock; sense 1 describes a lasting trait.

常見錯誤

❌He was a stupid student after the accident.' (implies sense 1 — permanent trait)
✅He looked stupid after the accident, staring blankly at the wall.
💡sense 3 describes a temporary dazed state, not a judgement of character.

stupid — noun