Definition: The word "affrightful" in Hebrews 1:10 refers to a sense of dread, alarm, or terror; a feeling of being frightened or troubled. It signifies that something might cause fear or distress. In context, "affrightful" is used as a metaphorical reference to a situation where someone might feel uneasy, unsure, or uncertain about the consequences of their actions, as if they are in an unsettling state due to a mysterious or supernatural force. The term also appears in other contexts, such as in the context of a person who feels unable to cope with the reality of the situation, expressing the sense of being unable to handle a challenging task or dilemma.