IPA: /ɪnˈfruːɡəl/
KK: /ɪnˈfruːgəl/
Not careful with money or resources; spending too much or wasting them.
His infrugal habits led to financial problems.
Comparative: more infrugal
Superlative: most infrugal
Infrugal → It is formed from "in-" (meaning not) and "frugal" (from Latin "frugalis", meaning economical or thrifty). The word "infrugal" means not economical or lacking thriftiness.
Think of 'not' ('in-') being combined with 'thrifty' ('frugal') to remember that 'infrugal' describes someone who is not careful with money.