Definition: The word "beetle-browed" is an adjective that describes someone who looks sullen or unfriendly, often because they have prominent eyebrows that make their face appear stern or serious.
"Beetle-browed" can also be used metaphorically to describe a mood or atmosphere that feels heavy or unfriendly, not just a person's appearance.
While "beetle" can refer to an insect, "beetle-browed" specifically relates to a person's facial expression and does not have a different meaning in this context.
In summary, "beetle-browed" is a descriptive term used to portray someone who looks unfriendly or sullen, often characterized by their prominent eyebrows.