the least willingly

[Vladv1]

Can "the least" be used with other adverbs? For example, in my sentence- He agreed to do that the least willingly?

 

[5jj]

He agreed to do that the least willingly?

That sentence does not work,

 

[5jj]

Can "the least" be used with other adverbs?

Yes. See these examples:

The least environmentally damaging power source is also the most expensive.

The machines that worked (the) least efficiently were replaced.

Least, the least, at least

Least, the least, at least - English Grammar Today - a reference to written and spoken English grammar and usage - Cambridge Dictionary

dictionary.cambridge.org

 

[Tarheel]

Can "the least" be used with other adverbs?

Other than what?