Acanthotic is a medical term used to describe abnormal growth or thickening of the skin. Some synonyms for acanthotic include hyperkeratotic, hypertrophic, lichenified, and papillomatous. Hyperkeratotic refers to the increased thickness of the skin's outer layer, while hypertrophic describes the enlargement of tissues or organs beyond their normal size. Lichenified skin has become thickened and rough from repeated scratching or rubbing, and papillomatous describes a growth of small, finger-like projections on the skin. Using these synonyms can help healthcare professionals accurately describe skin conditions and provide appropriate treatment.