MORALLY STRICT can be described by two crossword solutions, AUSTERE and PURITAN. AUSTERE is defined as having a stern or strict bearing or demeanor, while PURITAN is defined as a person who follows strict moral or religious principles. Both words imply a sense of rigidity and adherence to a set of rules or standards. In this context, MORALLY STRICT implies a person who is uncompromising in their adherence to a moral code.