Synonym Discussion of essential. essential, fundamental, vital, cardinal mean so important as to be indispensable. essential implies belonging to the very nature of a thing and therefore being incapable of removal without destroying the thing itself or its character conflict is essential in drama.
The definition of a cretin is a very stupid person, or a person suffering from the disease cretinism, which causes mental problems and deformity. An example of a cretin is a person who constantly makes stupid and horrible mistakes. 2  An example of a cretin is someone with physical deformities due to the disease.
Definition of utopian. 1  1 : of, relating to, or having the characteristics of a utopia; especially : having impossibly ideal conditions especially of social organization. 2  2 : proposing or advocating impractically ideal social and political schemes utopian idealists.