เสียใจ is to be sad, like when you break up with your girlfriend, when your cat dies. ผิดหวัง is to be disappointed, like when your son fails the exam, when the food you're eating is not as good as you thought it would be.
The Language Level symbol shows a user's proficiency in the languages they're interested in. Setting your Language Level helps other users provide you with answers that aren't too complex or too simple.
Has difficulty understanding even short answers in this language.
Can ask simple questions and can understand simple answers.
Can ask all types of general questions and can understand longer answers.
Can understand long, complex answers.
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