red-coated vs lobster-backed

red-coated and lobster-backed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
red-coated	No	Yes	No	No
lobster-backed	No	Yes	No	No

As adjectives, red-coated and lobster-backed are synonyms defined as:

red-coated and lobster-backed: used of British soldiers during the American Revolutionary War because of their red coats

red-coated (adjective)	lobster-backed (adjective)
used of British soldiers during the American Revolutionary War because of their red coats	used of British soldiers during the American Revolutionary War because of their red coats