Select the most appropriate antonym of the given word.

IMPEDE

Expedite

The most appropriate antonym of the word "impede" is expedite.

• Impede means "to delay or obstruct (someone or something) by causing them to move more slowly."
• Expedite means "to speed up or facilitate (an action or process)."

The other words do not have the opposite meaning of "impede."

• Hamper means "to hinder or obstruct (someone or something) by causing them to move more slowly or with difficulty."
• Retard means "to slow down or delay (the progress or development of something)."
• Thwart means "to prevent (someone or something) from achieving their goal or purpose."