IPA: /ˈluːsər/
KK: /ˈlusər/
Having less tightness or firmness than something else; more relaxed or free in fit or structure.
The looser fit of the shirt made it more comfortable to wear on hot days.
Comparative: looser
Superlative: loosest
Not a valid English word.
The term 'looser' is often confused with 'loser'.
Looser is derived from the comparative form of "loose" (from Old English "leas", meaning free or not firmly fixed) with the suffix "-er" (indicating a person or thing that performs an action or has a quality). The word "looser" means having less tightness or being less firmly fixed than something else.
Think of something that is 'not firmly fixed' ('loose') and remember that 'looser' means it is even less tight than before.