utterly
[adverb]
Synonyms: totally, absolutely, completely, entirely, extremely, fully, perfectly, thoroughly

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English Thesaurus: completely, totally/absolutely, entirely, utterly, fully, ...

[TahlilGaran] English Synonym Dictionary ▲

ut‧ter‧ly /ˈʌtəli $ -ər-/ adverb [+ adjective/adverb]
completely – used especially to emphasize that something is very bad, or that a feeling is very strong:
You look utterly miserable.

[TahlilGaran] Dictionary of Contemporary English ▲

utterly
adverb
BAD: I utterly hope you won't be angry with me.
GOOD: I sincerely hope you won't be angry with me.
BAD: I have to make sure that our customers are utterly satisfied.
GOOD: I have to make sure that our customers are completely satisfied.

Usage Note:
Utterly is usually used with words that have a negative meaning or express strong disapproval such as (adjectives) ridiculous, absurd, irrelevant, useless, wrong, impossible, (adjectival participles) confused, amazed, dejected, ruined, (verbs) reject, detest, destroy : 'This new tin opener is utterly useless.' 'The whole idea is utterly absurd.' 'I'm utterly amazed.' 'The entire building was utterly destroyed.'

[TahlilGaran] Dictionary of Common Errors ▲

completely to the greatest degree or in every way:
That’s a completely different subject.
Bad weather had completely destroyed the crops.
totally/absolutely especially spoken completely:
I’m totally exhausted.
He’s absolutely right.
entirely completely – used especially in negative sentences or after ‘almost’:
I’m not entirely sure.
The community is almost entirely dependent on farming.
utterly completely – used especially to emphasize strongly disapproving words:
It was utterly impossible to work in the house.
The whole thing is utterly absurd.
fully completely – used especially to show that you completely understand something or that you have all the information you need:
He was fully aware of what was happening.
The disease is still not fully understood.

[TahlilGaran] English Thesaurus ▲