разочарова́ние — meaning in English

razocharovaniye

English meaning

disappointment noun The feeling of sadness or letdown when something doesn't meet expectations.
disillusionment noun A feeling of sadness and disappointment that comes from discovering that something is not as good or as true as you believed.
drag verb To pull something heavy along a surface, often with effort.
frustration noun A feeling of annoyance or distress caused by being unable to do or achieve something.

разочарова́ние is used for these senses in English:

disappointment (countable) An example or the act of disappointing: a circumstance in which a positive expectation is not achieved.
disillusionment A feeling of disappointment, akin to depression, arising from the realization that something is not what it was expected or believed to be, possibly accompanied by philosophical angst from having one's beliefs challenged.
disillusionment The act of freeing from an illusion; the state of being freed therefrom.
frustration The feeling of annoyance at impossibility from resistance or inability to achieve something.
frustration The act of frustrating, or the state, or an instance of being frustrated.
let-down (countable) A disappointment or anticlimax.

noun The feeling of sadness or letdown when something doesn't meet expectations.
noun Something or someone that fails to meet expectations.

noun A feeling of sadness and disappointment that comes from discovering that something is not as good or as true as you believed.
noun The process of losing a false belief, or the state of having lost it.