grim vs human

grim

• To make grim; to give a stern or forbidding aspect to. 

• Rigid and unrelenting. 

• Ghastly or sinister. 

• Disgusting; gross. 

• Dismal and gloomy, cold and forbidding. 

human

• To behave as or become, or to cause to behave as or become, a human. 

• The tallest, most abundant and most intelligent of primates; Homo sapiens. 

• Any hominid of the genus Homo. 

• Of or belonging to the species Homo sapiens or its closest relatives. 

• Having the nature or attributes of a human being.