The antonyms for the term "dropping anchor" include "hoisting sail," "drifting away," and "setting off." Dropping anchor refers to the act of securing a ship in place by dropping an anchor into the water. Antonyms, on the other hand, are words with the opposite meaning of a term. Hoisting sail means raising the sail to move the ship, which is an antonym for dropping anchor. Drifting away means moving away from a fixed position without anchoring, which is the opposite of dropping anchor. Finally, setting off indicates leaving a location, which is incompatible with the act of dropping anchor. In conclusion, these antonyms illustrate opposing actions to dropping anchor, each with its unique meaning.