Synonyms:
- bloodcurdling,
- hair-raising,
- hardening,
- indurative,
- paralyzing,
- petrifactive,
- stunning,
- stupefying,
- terrifying,
- terror,
- terror-bearing,
- terror-breathing,
- terror-breeding,
- terror-bringing,
- terror-fraught,
- terror-giving,
- terror-inspiring,
- terror-striking,
- terrorful,
- terroristic,
- toughening