Definition of usefully:
- "Advice to Young Musicians. Musikalische Haus- und Lebens-Regeln", Robert Schumann.
- "Select Speeches of Daniel Webster", Daniel Webster.
So intently, indeed, was he engaged in reading, that he did not at first observe my entrance; when he did, however, he sprang up in great confusion, and locked the book up in his cabinet, whereupon I smiled, and told him to be under no alarm, as I was glad to see him so usefully employed.- "The Bible in Spain", George Borrow.