What's the difference between (1) "expressly" & "explicitly" and (2) "impliedly" & "implicitly"?

Thank you so much.

Kind Regards,

1 2
Well for a start there is no such word as impliedly.
From Reuters on 2006-1-17:

"It is difficult to defend the attorney general's declaration that the statute impliedly criminalizes physician-assisted suicide," Justice Anthony Kennedy said for the court majority.

The online dictionary defines '"impleidly" thus:
By implication or inference. Bp. Montagu.

So obviously impliedly is a word but I have never seen it before. However, a search on A9 turns up many references that appear to be legal documents or arguments. It appears to be a legal term. Google fight has over 18 million references to "implicitly" and only 500,000 references to "impliedly."
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Well, well, well.
You learn something new every day.

I, too, would have said that there is no such word as "impliedly".
I certainly wouldn't recommend using it unless within the narrow legal context you discovered for it.

I don't see a lot of difference between "expressly" and "explicitly".

I expressly told them not to fill out the HH1 forms!
I told them quite explicitly not to fill out the HH1 forms!

Nevertheless, explicitly has more the connotation of "in detail", while expressly has more the connotation of "on purpose".

The manual [explicitly / *expressly] states that the "Grind" button should not be depressed while the machine is already in gear.

Your sister made that sarcastic remark about dieting and exercise [expressly / *explicitly] because you were present to hear it.

In the context you are talking about, the term "expressly" means "in an express manner." It refers to something that is purposefully communicated in words or writing.

The term "explicitly" is defined as "fully and clearly expressed or demonstrated; leaving nothing merely implied; unequivocal." It refers to something that is not only communicated in words or writing, but is communicated in a way that is clear, exact, and unambiguous.

This is the general distinction i've observed in my career as a legal assistant: when a statute "expressly" states an idea, it does so purposefully and in words (as opposed to by implication). When a state "explicitly" states an idea is not only put in words, but is stated in a way that is unmistakeble and exact.
Implicitly carries a certainty of meaning that impliedly lacks. For example, if I state implicitly that nona the brit is incorrect, I am not leaving any room for doubt; if i imply it, it means it has not been stated as fact, but merely suggested by my use of words.
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A law degree.

*This answer does not constitute legal advice either expressly or impliedly.
Not true. Webster's Revised Unabridged Dictionary, published 1913 by C. & G. Merriam Co.
CalifJimI, too, would have said that there is no such word as "impliedly".
Great Scott! Scrabble doesn't even recognize it! Emotion: surprise

But I always liked Anthony Kennedy. Football player, wasn't he?

(I would certainly give it four syllables.)

Edit. Woops! That was Mr. Justice Byron White - Pittsburgh (now the Steelers) in '38
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