Utterly Completely Totally What's the differences

When you get a proposition, there are two ways to express it, the first just the proposition itself, simple and clear, the second is add some emotions to the proposition, the difference is the reader will just focus on the proposition itself but the second form makes the reader perceives the existence of the author's opinion and emotion.

In English there is a class of words called adverbs allow you to do this. Particulary in adverbs there is a type of adverbs called degree adverbs, or magnitude adverbs are used specifically for expressing the extent of something.

Let's see an example: the situation is normal. This is a simple proposition. But the state normal can has many understandings. By simply saying normal, the reader can have any understanding as they wish, because there may be no consensus about what can be considered as normal. This is not only for the particular example here. Many things in the world live in a spectrum, not just the white or black. The author need to express how "normal" the normal is, in his/her own opinion or knowledge of course. The normal for an expert may be a disaster or panic for a novice.

  • the situation is normal

There are two posibilities: I know what the normal means and I presume the readers also know it clearly. Or I just tell the truth from what I know and I don't care how the readers will perceive it.

  • the situation is completely normal

It's normal , don't panic, there is no big deal. The author worries the readers won't be convinced and doubt about it. By the completely normal the author means the kind of normal of full extent without any hiddings, readers should believe it.

  • the situation is utterly normal

Utterly means "truly, plainly, outspokenly".

The verb utter comes from Old English which literally means outer in a sense of outspoken. Like completely, it also means "to an absolute degree". The difference is, completely means the completeness of things itself, it's objective, utterlly means the speaker's opinion was spoken out completely without reservation, it's subjective. The first means I don't hide any facts, the second means I don't hide any opinions. When you want to focus on the facts, use completely, when you want to focus on opinion, use utterly.

the situation is completely normal
interact with people in a way that feels utterly normal