What are the opposite words for nonchalance?

Nonchalance refers to a state of being indifferent or unconcerned. Some antonyms for nonchalance are anxiety, concern, and worry. Anxiety refers to a state of unease caused by an impending event or uncertain outcome. Concern, on the other hand, denotes the attention paid to an issue with regards to its impact on an individual or their environment. Worry implies unease about the future or a particular concern. Other antonyms for nonchalance are engagement, excitement, and enthusiasm. Engagement represents the state of being involved and attentive to a particular matter. Excitement denotes a heightened state of emotion or anticipation. Finally, enthusiasm relates to exuberance or eagerness with regards to something or someone.

Antonym of the day

johnny come lately
expert, local, national.