Solicitude contains a deep sense of caring that implies worry about someone's well-being. His solicitude for her safety made him call her every hour.
Pro Tip 2/3
Often Positive
Solicitude usually has a positive sentiment, showing genuine care rather than mere obligation. Her solicitude during his illness was a great comfort.
Pro Tip 3/3
Formality Level
Solicitude is quite formal, more common in written than spoken English, and may sound unusual in casual conversations. The professor’s solicitude for his students’ understanding was evident in his detailed feedback.