senile - Used to describe behavior, mental states, or conditions associated with aging, especially when a person becomes forgetful or confused.
The elderly man showed symptoms of becoming senile, like forgetting where he put his keys, but with support, he managed to live independently for a while.
blast - To explode or destroy something or someone with explosives, or to break through or hit something with a similar, very strong force
While building the tunnel through the mountain, the construction crew blasted its way day by day until it was finished.
