typical, quintessential, representative, classic, standard, model, exemplary, prototypical, ideal, definitive, paradigmatic, characteristic, standard-setting, textbook, stereotypical, emblematic, icon... [more]
diabolical - demonic - devilish - malevolent - wicked - evil - sinister - nefarious - infernal - monstrous - hellish - satanic - malignant - vile - cruel - atrocious - heinous - fiendish - inhuman - brutal - vicious - malicious - sadistic - barbaric - ruthless - beastly - savage - bloodthirsty - ferocious - remorseless - merciless - heartless - pitiless - unfeeling - callous - cold-blooded - ghoulish - grim - ghastly - horrid - dreadful - frightful - appalling - shocking - abhorrent - detestable - loathsome - repugnant - repulsive - odious
The term 'fiendlike' refers to behavior or appearance that is extremely cruel, wicked, or demonic. It is often used to describe someone or something that embodies the traits of a fiend or demon, indicating a nature that is harmful, merciless, and morally corrupt.