figurative. Of fear, grief, silence, etc.: ‘Petrifying’, stupefying: having no relief.

That benumbs or renders torpid; paralyzing.

figurative. That deprives a person of feeling, vitality, movement, etc., esp. that paralyses with fear; terrifying.

Of, pertaining to, or chemically compounded with, azote. †azotic airor gas: nitrogen. †azotic acid: nitric acid. Also figurative deadening, dulling.

Having the quality of making dull.