You're then in a grey area of synonyms, it's not always hierarchical. If you're ...

Reebz on Feb 17, 2014 | parent | context | favorite | on: Ways to avoid using the word 'very'

You're then in a grey area of synonyms, it's not always hierarchical. If you're in a race for superlatives, then it's time to get creative. You could try: "paralyzed with terror".