Similar word to sickie:

abhorrent, abominable, appalling, awful, beastly, cruel, detestable, disagreeable, disgusting, dreadful, eerie, execrable, fairy, fearful, frightful, ghastly, grim, grisly, gruesome, heinous, hideous, horrendous, horrid, loathsome, lousy, lurid, mean, nasty, obnoxious, offensive, repellent, repulsive, revolting, scandalous, scary, shameful, shocking, sickie, terrible, terrifying, ungodly, unholy, unkind