I’ve only heard and seen the word “irascible” applied to a person and once used it to describe ones instrument, which I understand because you can anthropomorphize an object. Can you use it to describe a relationship? For example, “our relationship was irascible”, meaning that any small misunderstandings would easily turn into a fight. Or is it that I can’t apply it to a concept because a relationship in itself doesn’t have any qualities? And in this case it’s the person that is “irascible” and causing the fight?