Dry-rot refers to the decay of timber caused by fungi. While it may be a common problem for wooden structures, there are antonyms that can be applied to this term. These antonyms signify healthy, strong, and well-preserved timber. Some examples of antonyms for dry-rot are durable, hearty, robust, strong, sturdy, and sound. These words signify the opposite of dry-rot, which is a decaying and weakened timber. Dry-rot can be prevented by keeping timber dry and well-ventilated or by using waterproof coatings. If left unattended, dry-rot can cause significant damage to a structure and can be hazardous to the building's occupants.