Below are possible answers for the crossword clue Fatal weakness?.
4 letter answer(s) to fatal weakness?
FLAW
add a flaw or blemish to; make imperfect or defective
an imperfection in a plan or theory or legal document that causes it to fail or that reduces its effectiveness
an imperfection in an object or machine; "a flaw caused the crystal to shatter"; "if there are any defects you should send it back to the manufacturer"
defect or weakness in a person's character; "he had his flaws, but he was great nonetheless"
Other crossword clues with similar answers to 'Fatal weakness?'