featherweight (n.)

• bantam
• bantamweight
• boxer
• bruiser
• button
• chit
• cluck
• diminutive
• dimwit
• fighter
• fingerling
• flyweight
• heavyweight
• lightweight
• middleweight
• mini
• minnow
• mouse
• no-account
• nubbin
• palooka
• peewee
• pony
• prizefighter
• pug
• pugilist
• runt
• shrimp
• slip
• snip
• snippet
• tit
• wart
• weak
• welterweight
• wisp