infrugal
/ɪnˈfruːɡəl/Definitions
1. adjective
relating to or characterized by the avoidance of extravagance or unnecessary expense
“She was an infrugal shopper, always looking for the best deals on quality items.”
2. noun
a person who avoids extravagance or unnecessary expense
“The infrugal lifestyle advocate wrote a bestselling book on simple living.”