chubby[adjective]Synonyms: plump, buxom, flabby, podgy, portly, rotund, round, stout, tubby 
Antonyms: slim 
English Thesaurus: fat, overweight, big/large, obese, chubby, ... [TahlilGaran] English Synonym Dictionary ▲
 chub‧by /ˈtʃʌbi/ 
 adjective[
Date: 1500-1600; 
Origin: chub type of fish (15-21 centuries)]
 slightly fat in a way that looks healthy and attractive: 
 a chubby six-year-old
 a chubby six-year-old a baby with round chubby cheeks—chubbiness noun [uncountable]
 a baby with round chubby cheeks—chubbiness noun [uncountable]  [TahlilGaran] Dictionary of Contemporary English ▲
 fat having too much flesh on your body. It is rude to tell someone that they are fat. It is also better not to use any of these words when talking directly to someone about their body: 
 She thinks she’s fat.
 She thinks she’s fat.  He looks the same, just a little fatter.overweight
 He looks the same, just a little fatter.overweight weighing more than you should: 
 Many medical conditions are caused by being overweight.
 Many medical conditions are caused by being overweight.  She was several kilos overweight.big/large
 She was several kilos overweight.big/large used when saying that someone has a big body. 
Large is more common than 
big in written English: 
 My father was a big man.
 My father was a big man.  two large ladiesobese
 two large ladiesobese extremely fat in a way that is dangerous to your health: 
 He went to a summer camp for obese teenagers.chubby
 He went to a summer camp for obese teenagers.chubby slightly fat in a nice-looking way – used especially about babies and children: 
 A chubby little baby was playing on the rug.plump
 A chubby little baby was playing on the rug.plump a woman or child who is plump is slightly fat, especially in a pleasant way: 
 Her mother was a plump cheerful woman.flabby
 Her mother was a plump cheerful woman.flabby having soft loose skin that looks unattractive: 
 a flabby stomach
 a flabby stomach  Her body was getting old and flabby.portly literary
 Her body was getting old and flabby.portly literary fat and round – used especially about fairly old men: 
 The bishop was a portly middle-aged gentleman.
 The bishop was a portly middle-aged gentleman. [TahlilGaran] English Thesaurus ▲