The phrase "was roused" implies that someone or something has been awakened, stirred, or excited from a state of rest or inactivity. The antonyms of this phrase would include "was subdued," "was tranquil," "was pacified," and "was calmed." These words denote the opposite of being roused, suggesting a state of peace, stillness, and quietness instead. Perhaps someone was soothed by a lullaby or a gentle massage, or a raging animal was tamed by a skilled trainer. Whatever the context may be, the antonyms of "was roused" signify a state of tranquility and calmness.