Option 1 -> audacious means bold and daring, the opposite of fearful and timid.
Option 2 -> timorous means showing nervousness, fear, or lack of confidence, directly matching the description.
Option 3 -> reckless means careless and without regard for consequences, contradicting fearful behavior.
Option 4 -> intrepid means fearless and brave, the opposite of timid nature.
Hence, Option 2: timorous -> This word perfectly captures someone who exhibits fear and timidity in unfamiliar situations, as "timorous" literally means lacking in courage or confidence, characterized by fear -> correct