The antonyms for the word "am seasick" refer to not feeling nauseous or uncomfortable while at sea. Words that can be used in contrast to "am seasick" are: "comfortable", "stable", "calm", "steady", "relaxed", "balanced", and "at ease". These words are commonly associated with a positive experience on a boat or ship and are used to describe the opposite feeling of seasickness. Antonyms for "am seasick" can also include words related to the act of enjoying the sea, such as "adventurous", "exciting", "pleasurable", "thrilling", and "enjoyable". In summary, the antonyms for "am seasick" represent a positive and enjoyable experience while traveling on the water.