- frightful
- I(New American Roget's College Thesaurus)II(Roget's IV) modif.1. [Causing fright]Syn. fearful, awful, dreadful, horrifying, frightening, terrifying, alarming, scary, horrible, terrible, awesome, awe-inspiring, direful, gruesome, traumatic, ghastly, grisly, macabre, lurid, petrifying, unnerving, hair-raising, bloodcurdling, nightmarish, shocking, repellent, harrowing, appalling, horrific, atrocious, unspeakable, inconceivable, ominous, portentous, fearsome, dismaying, demoralizing, disturbing, disquieting, eerie, weird, uncanny, spooky*, creepy*.Ant. charming*, reassuring, alluring.2. [Very bad or unpleasant]Syn. calamitous, shocking, terrible, horrendous; see offensive 2 .III(Roget's Thesaurus II) adjective 1. Very bad: appalling, awful, dreadful, fearful, ghastly, horrendous, horrible, shocking, terrible. See GOOD. 2. Causing or able to cause fear: appalling, dire, direful, dreadful, fearful, fearsome, formidable, ghastly, redoubtable, scary, terrible, tremendous. See FEAR.
English dictionary for students. 2013.