The antonyms for the word "wast lenient" are strict, unsympathetic, rigid, severe, harsh, stringent, hard, unyielding, and inflexible. When someone is not lenient, they tend to be uncompromising and very rigid with their decisions, which may make them difficult and daunting. Being strict can be ideal, for instance, when someone takes over the responsibility of an organization's financials or when establishing laws to protect the public. People that are not lenient, even though challenging, are essential in maintaining order and balance. Being harsh and inflexible is crucial when dealing with laws and codes, as it ensures that justice is served and that people act responsibly.