The phrase "more iron-fisted" implies a person or entity that is authoritarian, oppressive, or heavy-handed. Antonyms for this phrase may include variations that suggest a lighter touch, such as "gentler," "softer," "more lenient," or "less severe." Other antonyms might highlight a lack of control or authority, such as "disorganized," "chaotic," "loose," or "permissive." Alternatively, some antonyms could suggest a more balanced approach, such as "fairer," "more considerate," "more moderate," or "more democratic." Ultimately, the choice of antonym depends on the context and the desired tone of the communication.