I often google the meaning of a word; and in the Google definition of, say, a word x it says:- y,z. I google the definition of y, it says in the meaning:- x,z; and when I look for the meaning of the definition of 'z':- x,y.
This is the test of a good dictionary: a good dictionary will not give “word x is y,z" and "y = x,z”. A good dictionary will explain the word’s origin and use a sentence or more to explain the meaning and then give several examples, with context, to show the word in various uses and meanings. It is impossible to over-emphasise the importance of context in English: the same word in one context may be an insult, and in another the greatest praise.
There are, in fact, very, very few words in English that really have the same meaning in all contexts. The general guidance is “If the word or phrase is different, then the meaning, or at least the nuance, will be different.” For example, the words kingly, regal, and monarchical may all seem to mean “in the manner of a royal ruler”, but, when put in a sentence will create a different image in the mind.
This is one reason why English is so popular – it allows subtlety of meaning and ideas to be expressed more precisely or, when needed, less precisely.
Your example is good.
perplexed -> baffled -> bewildered
If I am perplexed – the image is of my being intelligent and thoughtful, but puzzled and at a loss to see a solution.
If I am baffled – the image is of my having no idea about a solution and am somewhat confused. The word is now a little old-fashioned, and so the nuance is that I am middle-class.
If I am bewildered – the image is of my being so confused by all that is happening that I am not able even to consider a solution.