They are very serious vs Thoughtful

When to use each in English, with meaning, register, and examples.

They are very serious

Top 2,000 (common)

Thoughtful

Top 2,000 (common)C1adjective
 They are very seriousThoughtful
Pronunciation🇬🇧 //ðeɪ ɑː vɛri ˈsɪəriəs//🇺🇸 //ðeɪ ɑr ˈvɛri ˈsɪriəs//🇬🇧 /["/ˈθɔːtfl/"]/🇺🇸 /["/ˈθɔːtfl/"]/
MeaningThey are not joking and are focused.Caring about others and their feelings.
ExampleIn this meeting, they are very serious about the project timeline.He looked thoughtful.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR level-C1
Part of speechadjective
Collocationsvery serious conversation, very serious matter, very serious expression, very serious consequences, very serious approachthoughtful gesture, thoughtful person, thoughtful consideration, thoughtful reply, very thoughtful
Antonyms-thoughtless, inconsiderate, selfish
Common mistakesUsing 'serious' incorrectly as joyful or happy., Confusing 'serious' with 'silly'., Omitting context that clarifies their seriousness.Confused with 'thoughtless' which means not considering others., Incorrectly used to describe things instead of people., Using it in a sarcastic tone where it doesn't fit the meaning.
Usage notesUse in situations where you want to communicate that someone is earnest or focused. Avoid in casual or light-hearted conversations.Use 'thoughtful' when describing someone who considers others' feelings. It's appropriate in both casual and formal contexts. However, avoid using it sarcastically, as it can change the meaning.

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They are very serious
Thoughtful

Frequently asked questions: They are very serious vs Thoughtful

What's the difference between They are very serious and Thoughtful?

They are very serious: They are not joking and are focused. Thoughtful: Caring about others and their feelings.

Can you show an example of each?

They are very serious: In this meeting, they are very serious about the project timeline. Thoughtful: He looked thoughtful.

Can I use They are very serious and Thoughtful interchangeably?

Not always. They are very serious and Thoughtful are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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