There are many synonyms for the phrase "climb down". Some alternatives include: descend, come down, step down, disembark, dismount, ease down, move down, go lower, decrease, lower oneself, and reduce. These synonyms are useful in a variety of contexts, such as scaling down a rock face, stepping off a ladder or stepping stool, or getting off a horse or other animal. They can also be used metaphorically to describe an individual scaling back their behavior or actions or reducing their expectations. Regardless of the context, having a variety of alternatives to "climb down" can add clarity and specificity to your writing or speech.