Long-faced and Let down

Long-faced adjective - Having a face longer than the usual.

Let down and long-faced are semantically related. In some cases you can use "Let down" instead an adjective phrase "Long-faced".

Let down verb - To fall short in satisfying the expectation or hope of.

Long-faced and let down are semantically related. Sometimes you can use "Long-faced" instead an adjective "Let down".