Business English Vocabulary Challenge: insufficient, insufferable, unsubstantiated

Welcome to the Business English Vocabulary Challenge! In this article, you'll learn 4 tricky Business English adjectives.

Today's Challenge:

Choose the correct option and listen to the sentence.

Did you get it right?

INSUFFICIENT /ˌɪn.səˈfɪʃ.ənt/

not enough

The payment was declined due to insufficient funds.

There was insufficient time to finish the project.

INSUFFERABLE /ɪnˈsʌf.ər.ə.bəl/

very unpleasant or annoying

The heat was insufferable, so we stayed indoors.

His arrogant attitude made him insufferable to work with.

UNSUBSTANTIATED /ˌʌn.səbˈstæn.ʃi.eɪ.tɪd/

not supported by evidence

The rumors about the company closing were unsubstantiated.

She made an unsubstantiated claim about the product's safety.

UNFOUNDED /ʌnˈfaʊn.dɪd/

not based on facts or truth

His fears about losing his job were unfounded.

The accusations turned out to be unfounded.

So, the correct answer is a. insufficient.

Learn more tricky adjectives here.

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Business English Vocabulary Challenge: Bonus Quiz Questions

Choose the correct option and listen to each sentence.

1.

2.

3.

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