The antonyms for the phrase, "make barren" are varied and multi-faceted. Some examples include; fertilize, nourish, enrich or cultivate. These words all have positive connotations, implying growth, abundance, and productivity, which contrasts with the idea of barrenness; an absence of life and vitality. Another set of antonyms for "make barren" includes populate, populate, and replenish. These words focus on the idea of filling a space with life or activity, which again, is the opposite of the barrenness. In essence, these antonyms highlight the importance of nurturing, growth, and life-giving practices, essential for building a vibrant, flourishing environment.