Amphibiously is an adverb that refers to performing an action in both land and water. Some synonyms for amphibiously include dualistically, bi-modally, bisexually, and transversely. Dualistically denotes the act of performing something in two different ways, while bi-modally refers to performing something in two different modes. Bisexually implies that the action is performed by both males and females, while transversely means a movement across different mediums. Other synonyms for amphibiously include interchangeably, versatilely, and multifunctionally. All these words express the versatile nature of an action that can be performed on both land and water. Amphibiously is a useful word when talking about amphibious vehicles, such as amphibious cars, boats, or tanks, and water sports such as swimming or diving.