Sometimes when I look up the meaning of a word in google, like just now for "gustatory", not only do I get what part of speech it is but also added information, such as that it's a "formal" adjective.
Were I to look for the meaning of, say, "delicious", there will be no additional note.
But were I to look up a word like "cerulean", this time the added information will remind me that it's a "literary" adjective.
Which brings me to the question, what is the difference between formal and literary? Does it mean that if I write a poem, I should use "cerulean" but if I'm writing a letter to a local politician, then I should use "gustatory"?
Another question would be where can I find a list of everyday adjectives versus formal adjectives versus literary adjectives?
Thank you very much for your help!