I would like to know if there are any nuances in using these words.
Are they the synonyms for each other?
Please, could you try to explain the differences of these words to me?
How does someone who is underappreciated differ from someone who is underestimated?
If you underappreciate something, you don't realize how good it is, how valuable. Susan felt underappreciated at work when her coworkers got a trip to Bermuda and she got a $50 gift card for the project they all worked on.
There are times, however, when "appreciate" is used to mean "estimated." "We didn't appreciate how much damage the CEO's affair would have on the company's reputation."
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
I'd like to ask two more questions about the word "appreciate". Is it right to say "I treasure something (or somebody)." meaning that I appreciate something (or somebody)? And is there a word such as "Undertreasure" in the English language?