Difference between deflated and depressed

[K.]

Test No. express/advan-17 "Down to Earth", question 8

You can use special symbols in your emails if you want to show you're down in the mouth.

(a) decided
(b) definite
(c) deflated
(d) depressed

Test No. express/advan-17 "Down to Earth", answer 8

You can use special symbols in your emails if you want to show you're depressed.

Correct answer: (d) depressed

Your answer was: incorrect
You can use special symbols in your emails if you want to show you're deflated.
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Hi,
I thought that deflated means to be brought low in spirit. Is deflated stronger than depressed ? Maybe we are just not allowed use 'deflated' in such sentence?

[Alan]

Usually this word is used in the literal and technical sense of having lost air but when it is used in a figurative sense it means more down in spirit whereas depressed is needed here to show the physical sign of being unhappy/depressed which can be shown in the symbol.
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