The antonyms of the word unalarmed include words like concerned, worried, afraid, anxious, and disturbed. These words describe the opposite of unalarmed, which means not worried or disturbed. When someone is concerned, they are feeling an unease or worry about something that is going on. On the other hand, when someone is unalarmed, they are relaxed and not worried about anything. Similarly, when someone is anxious or afraid, they are experiencing fear and worry about a particular thing or situation, which is quite contrary to being unalarmed. Therefore, these antonyms can be used to describe a person's emotional state in different situations.