Premalignant refers to cells or tissues that are abnormal and have the potential to become cancerous. There are several synonyms for the word premalignant, including precancerous, dysplastic, atypical, and neoplastic. Precancerous describes a condition where abnormal cells are present but have not yet developed into cancer. Dysplastic refers to abnormal growth or development of cells or tissues. Atypical means not conforming to the normal type or pattern. Neoplastic describes cells that have abnormal growth and multiplication patterns. All of these synonyms are used to describe cells or tissues that have the potential to become cancerous and need to be monitored or treated.