The term "boxing in" generally refers to limiting or confining someone or something. Antonyms for this phrase can include words like "liberating," "freeing," "expanding," or "opening up." To liberate or free someone or something from being "boxed in," one might need to break through barriers or welcome new ideas and perspectives. To expand or open up, one might need to explore new territories, push boundaries, or simply let go of limitations and constraints. Whatever the case may be, it is important to recognize that "boxing in" can hinder growth and progress, while its antonyms can encourage and facilitate it.