unnavigable編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看unnavigableunnavigable — 形容詞形容詞1. Not able to be traveled on by ships or boats1.形容詞釋義無法通航的Not able to be traveled on by ships or boats例句The river was unnavigable due to low water levels.