The phrase "affordable cost" is a commonly used term to describe something that is reasonably priced. However, there are several other synonyms that can be used to describe the same concept. Some possible synonyms include "cost-effective," "economical," "reasonable," "budget-friendly," "inexpensive," "moderate," and "low-cost." While each of these terms has a slightly different definition, they all convey the idea of something that is accessible and within reach financially for most people. Using these synonyms can help to add variety to your writing and avoid repetition, while still conveying the same important message about affordability.