foggiest

IPA/ˈfɒɡ.i/
KK[fˈɑɡiəst]IPA/ˈfɑː.ɡi/

foggiest — adjective

  • foggiestpositive
  • more foggiestcomparative
  • most foggiestsuperlative

1. Filled or covered with thick mist or fog, so that it is hard to see clearly.

1.形容詞A2
釋義

Filled or covered with thick mist or fog, so that it is hard to see clearly.

例句

The mountain road was so foggy that Esme could barely see ten metres ahead.

so + adjective + that-clause for result

Trang switched on the car's fog lights as the coastal highway grew thick with mist.

collocation: fog lights

同義詞
  • misty

    implies lighter fog or haze; less dense than foggy

  • hazy

    suggests a thin layer of mist or smoke that makes outlines unclear

  • murky

    emphasises darkness and gloom as well as fog

反義詞
  • clear

    the opposite of foggy weather conditions

文法句型

foggy + noun

be/get + foggy

so foggy + that-clause

用法筆記

The base form is foggy; comparative is foggier; superlative is foggiest. This sense is the original, literal meaning from which the figurative senses developed.

2. Not able to have sharp, quick thoughts because you are exhausted, ill, or under

2.形容詞B1
釋義

Not able to have sharp, quick thoughts because you are exhausted, ill, or under the influence of medication or alcohol.

例句

After the long flight from Dubai, Folake felt too foggy to finish her report.

feel + too + adjective + to-infinitive

The medicine left Liang with a foggy head and an upset stomach all day.

collocation: foggy head

同義詞
  • groggy

    specifically suggests weakness and unsteadiness, often after waking up or illness

  • dazed

    implies a stronger sense of shock or confusion, often from a blow or surprise

  • confused

    more general; foggy implies a clouded, slow quality rather than active bewilderment

反義詞
  • alert

    fully awake and able to think quickly

  • clear-headed

    able to think logically without confusion

文法句型

feel + foggy

be + foggy

foggy + head / thinking / thoughts

用法筆記

Typically describes a temporary state caused by external factors (lack of sleep, illness, medication). Does not describe permanent mental ability or intelligence.

常見錯誤

❌I'm feeling foggy today because I ate too much lunch.
✅I'm feeling foggy today because I only slept four hours last night.
💡Foggy in this sense is caused by tiredness, illness, or substances, not by digestion or fullness.

3. Not having a clear memory or understanding of something; not knowing anything at

3.形容詞B1
釋義

Not having a clear memory or understanding of something; not knowing anything at all about a particular subject or fact.

例句

Brooke admitted she did not have the foggiest idea why the train was delayed.

fixed expression: not have the foggiest idea

Rafael was foggy on the details of his grandmother's old recipe for mooncakes.

be foggy on + [topic]

同義詞
  • hazy

    close in meaning; foggy emphasizes 'not knowing at all,' while hazy suggests a vague outline exists

  • vague

    focuses on lack of detail rather than total absence of knowledge

  • sketchy

    more informal; suggests information is incomplete or unreliable

反義詞
  • clear

    having a precise memory or understanding

  • certain

    being sure and confident about a fact

文法句型

not have the foggiest + (idea / notion / clue)

be foggy on + [topic / details]

get + foggier + with + [time]

用法筆記

The fixed expression 'not have the foggiest (idea)' is informal and most common in British English. It means 'to have no knowledge at all.' The shorter form 'not have the foggiest' (without 'idea') is also common. In American English, the equivalent is 'not have the faintest idea.'

常見錯誤

❌I don't have any foggiest where I put my keys.
✅I haven't the foggiest idea where I put my keys.
💡The expression requires 'the' (not 'any') and typically uses 'haven't' rather than 'don't have.'