This is the 14972nd most frequent German word.
schlimmsten
"Schlimmsten" means "worst" in English.
The term 'schlimmsten' here is used to express the superlative degree of 'schlimm', meaning the most adverse or negative aspect.
Das schlimmsten war, dass niemand geholfen hat.
The worst thing was that no one offered help.
Here, 'schlimmsten' characterizes a time period as having the most difficult or adverse conditions.
In den schlimmsten Zeiten halten Freunde zusammen.
In the worst times, friends stick together.
The usage of 'schlimmsten' in this context refers to the most unfavorable scenario or possibility.