sparingly
/ˈspɛːrɪŋli
/adverb
In a restricted or infrequent manner; in small quantities: the sharply flavoured leaves should be used sparingly...
- Often, faculty members are too busy to learn how to use the instruments or they use them sparingly.
- It's full of wry, witty observations, with poignant bits thrown in sparingly.
- Levin writes sparingly—one book in five years.