Idiom: out of one’s depth
Note: The literal meaning of out of one's depth describes water that's higher then a person's head (for example, if the depth of the water in a pool is deeper than the person is tall).
The idiom out of one stopped is therefore used to describe someone who is in a situation in which they are not capable of handling.
— I took several yoga classes at my gym but when I went to the yoga retreat I was out of my depth.
— My son felt so out of his depth in the fifth grade that we hired a private tutor and had him attend summer school to repeat some of his studies.
— Don't worry. It's common to feel out of your depth after moving to a new country.
— Our company realized we were out of our depth with social media outreach so we've hired an expert to help us understand it and implement a strategy.
— I've never felt more out of my depth than when trying to learn Chinese.
— My husband and I were out of our depth playing 4.0 level tennis so we moved back to 3.5 and are winning matches again.
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