The word "considerable" means something that is significant, large, or noteworthy. There are numerous synonyms available that can be used instead of this word to express a similar meaning. Some of the commonly used synonyms for "considerable" include sizeable, substantial, ample, voluminous, abundant, extensive, copious, and generous. Other synonyms that can be used in place of "considerable" include important, meaningful, significant, considerable, noteworthy, and impressive. These synonyms are useful when you want to vary your diction or when you require more precise language to convey an idea. So, choose the appropriate synonym that fits your context, and elevate your writing to the next level.