inhumanitarian Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition adjective. lacking compassion and kindness for others. Example Sentence He showed inhumanitarian behavior by ignoring the cries for help. More Example Sentences They condemned the inhumanitarian treatment of people. Synonyms cruel; callous; unkind Antonyms kind; compassionate; humane Hear It! Say It! Write It! inhumanitarian Switch to cursive Start Share with your friends: