colourless
/ˈkʌlələs/ (bre, ipa) · /ˈkʌlərləs/ (ame, ipa)
colourless — adjective
- colourlesspositive
- more colourlesscomparative
- most colourlesssuperlative
1. If a liquid, gas, or other substance is colourless, it shows no colour in its ap
If a liquid, gas, or other substance is colourless, it shows no colour in its appearance — clear water and clean air are everyday examples; when describing a person's face, the word means extremely pale, usually because of fear, shock, or illness.
The liquid was completely colourless, so the scientist could not tell which chemical it was.
colourless liquid — literal use with substances
Aiko's face turned colourless when she heard the terrible news about the earthquake.
face turns colourless — describing sudden paleness
This colourless gas has no smell, which makes it very dangerous inside a home.
Nikolai watched the colourless liquid turn bright blue after he mixed in the powder.
Drinking water should look colourless and clear before it is safe to use.
- transparent
focuses on being see-through rather than lacking colour
- clear
can also mean free of cloudiness or impurities
- pale
still has some colour but very faint; less extreme than colourless
文法句型
be + colourless
turn/go + colourless
用法筆記
Frequently describes liquids, gases, and other physical substances. When describing a person's complexion, 'turned colourless' or 'went colourless' is the typical collocation, often following a sudden shock or illness.
常見錯誤
2. If a person, event, piece of writing, or place is colourless, it is dull and uni
If a person, event, piece of writing, or place is colourless, it is dull and uninteresting — completely lacking any quality that would make someone feel engaged, excited, or curious.
The manager's colourless speech put most of the staff to sleep before lunch.
colourless speech — describing dull public speaking
Beatriz found the film colourless and turned it off after twenty minutes.
find + noun + colourless — opinion structure
The report was so colourless that no one could remember a single fact from it.
A colourless personality can make it hard to build friendships at work.
Critics called the exhibition colourless and said it lacked any fresh ideas.
- dull
very similar meaning; slightly more common in everyday speech
- bland
suggests lack of strong character, especially for food or personality
- uninteresting
more direct and literal; less expressive than colourless
文法句型
be + colourless
find + noun + colourless
用法筆記
Typically describes speeches, writing, performances, personalities, or cultural events. The word implies a complete absence of engaging qualities rather than simply being mildly boring. Common in reviews and critical opinions.