The antonyms for the word "un-hooking" include hooking, attaching, fastening, joining, linking, and connecting. These words represent the opposite of unhooking, which involves separating or disconnecting one object from another. For example, a person may unhook their car from a trailer or unhook a piece of clothing from a hanger. In contrast, hooking, attaching, or fastening an object involves bringing it into close proximity with another object and securing it. Linking, connecting, or joining two objects also involves bringing them together in some way. Understanding these antonyms can help individuals use language more accurately and effectively in their writing and communication.