めったに怒らない

The phrase 'めったに怒らない' (metta ni okoranai) is composed of two main parts: 'めったに' (metta ni) and '怒らない' (okoranai). 'めったに' (metta ni) is an adverb meaning 'rarely,' 'seldom,' or 'hardly ever.' Its origin can be traced back to the Edo period. The word 'めった' (metta) originally meant 'reckless,' 'thoughtless,' or 'at random.' Over time, its usage evolved, and with the addition of the particle 'に' (ni), it came to emphasize the infrequency of an action. For example, 'めったにない' (metta ni nai) means 'rarely exists' or 'is rare.' '怒らない' (okoranai) is the negative form of the verb '怒る' (okoru), which means 'to get angry,' 'to become angry,' or 'to be offended.' The verb '怒る' (okoru) itself has ancient roots in the Japanese language, appearing in classical texts. Its core meaning relates to the expression of strong displeasure or indignation. When combined, 'めったに怒らない' literally translates to 'rarely gets angry' or 'does not often get angry.' This phrase describes a person who is patient, composed, and not easily provoked to anger. It highlights a character trait of emotional stability and a calm demeanor. The phrase implies a gentle and understanding nature, suggesting that the person is tolerant and forgiving, and therefore, their anger is a rare occurrence. There isn't a specific single event or individual credited with coining this exact phrase, as it's a natural combination of existing words and grammatical structures in Japanese to express a common human characteristic. Its usage has been consistent across various periods in Japanese literature and daily conversation to describe individuals with a patient temperament.