The word "imageable" means that something can be imagined or pictorially represented in one's mind. Some synonyms for this word include "imaginable," "conceivable," "visualizable," "representable," and "depictable." All of these words suggest that something can be thought of or envisioned in a tangible way. "Imaginable" and "conceivable" both imply that something is possible to imagine or believe, while "visualizable" and "representable" suggest that something can be depicted in a visual form. "Depictable" also implies that something can be shown or portrayed in a realistic way. All of these synonyms suggest the ability to create a mental picture or image of something in one's mind.