unrelievable
- adjective
- /ˌʌnrɪˈliːvəbl/
:
insustituible
- Because of her unique skills, she was considered unrelievable in her position at the company.
Examples
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During the crisis the only surgeon was unrelievable, working non-stop for three days.
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The guard's post was so remote that he was unrelievable for the entire shift.
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The burden of leadership can feel unrelievable at times.
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Some responsibilities are simply unrelievable.
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The technician was unrelievable during the server outage, as no one else could handle the situation.
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In her role as the lead architect, she knew she was unrelievable due to her specialized knowledge of the project.
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His position in the company was unrelievable, as no one else possessed the same expertise to replace him.
Synonyms
Not able to be made again if lost or damaged
A person who cannot be removed from their job except for very serious reasons
So important and needed that you cannot do without it
How Replaceable
Surface Forms
Morphology
unrelievable = relievable (semi-transparent) = un + relieve + able
Morphologically regular, but the sense relating to relieving someone from duty or providing a substitute is a specific usage that some learners may not immediately infer.
Etymology
The word unrelievable joins un- 'not' and relieve 'to take someone's place or free them from duty', like when a guard receives relief, so it means a person or post that cannot be replaced or freed.