Which word describes someone or something that inspires fear?

The word "redoubtable" is well-suited to describe someone or something that inspires fear due to its connotation of respect and fear combined with a sense of the formidable. It originates from the French verb "redouter," meaning to fear. In this context, a "redoubtable" figure is not only feared but also commands admiration for their strength or accomplishments, making them a figure of significant presence or power.

For example, a redoubtable opponent in a debate may inspire both apprehension and respect due to their formidable arguments. The word captures the essence of both inspiring fear and awe, which reflects a duality of regard that adds depth to the meaning.

The other options do not convey the same sense of inspiring fear. "Facile" typically refers to something that is effortless or superficial, "banal" means trite or unoriginal, lacking interest or emotion, and "baleful," while suggesting harm or evil, does not encompass the idea of inspiring fear combined with respect or admiration that "redoubtable" conveys. Baleful suggests a malevolence but does not necessarily imply the overwhelming powerful presence that can invoke fear in an admiring way.