The word "re-solved" indicates finding a solution to a problem that has already been addressed in the past. The antonyms for this word can be "unsolved" or "unresolved," which means that the problem remains unsolved and needs further attention. Another antonym for "re-solved" is "complicated," which means that the problem has not been solved but has become more challenging and intricate. "Unanswered" can also be an antonym for "re-solved" as it indicates a lack of response or solution to a particular issue. Therefore, the antonyms for "re-solved" portray the opposite meaning of finding a solution to a problem.