What is the closest synonym for 'poignant'?

The word 'poignant' primarily refers to something that evokes a strong emotional response, often related to feelings of sadness or regret. It is commonly associated with moments, memories, or experiences that deeply touch the heart or provoke an intense emotional reaction. Given this emotional context, the closest synonym among the choices provided is 'sad.' This term encapsulates the essence of what 'poignant' conveys, as both words relate to the experience of sorrow or emotional intensity. In contrast, the other choices represent emotions or states that do not align with the meaning of 'poignant,' such as happiness, indifference, or humor. Thus, 'sad' stands out as an apt synonym that fully captures the emotional weight of poignancy.