BLUNT v.
weaken, as any appetite, desire, or power of the mind; to impair the force, keenness, or susceptibility, of; as, to blunt the feelings.
IRRITABILITY n. 2 definitions
A natural susceptibility, characteristic of all living organisms, tissues, and cells, to the influence of certain stimuli, response being manifested in a variety of ways, -- as that quality in plants by which they exhibit motion under suitable stimulation; esp., the property which living muscle processes, of responding…