IPA: /ˈstɪndʒɪə/
KK: /ˈstɪndʒɪər/
This word describes someone who is unwilling to spend money or share resources; they are very careful with their money and do not like to give or share.
He is stingier than his brother when it comes to buying gifts.
Comparative: stingier
Superlative: stingiest
Stingier is formed from "stingy" (originating from the Old English "stingig", meaning to be reluctant to spend) and the suffix "-er" (meaning more). The word "stingier" means more reluctant to spend or give than someone else.
Think of someone who is 'more reluctant' to spend money — that's what 'stingier' means.