Adjective

(er)

Yielding to the touch, and easily moved or shaken; hanging loose by its own weight; wanting firmness; flaccid; as, flabby flesh .

* {{quote-journal

, date = 1867-12-28 , title = External Manual Pressure during Labour , first = John , last = Wades , journal = The British Medical Journal , volume = 2 , page = 601 , pageurl = http://books.google.com/books?id=RxRAAAAAcAAJ&pg=PA601&dq=flabby , passage = My attention was accidentally drawn to this aid, some five or six years ago, while attending a lady (multipara) in her confinement, who suffered from umbilical hernia, with large flabby abdomen. }}

(of wine) Having a slight lack of acidity; having mild sweetness.

overwrought.

a flabby sheaf on a paracompact space

Adjective

(er)

Deficient in physical strength; weak; infirm; debilitated.

Though she appeared old and feeble , she could still throw a ball.

* {{quote-news

, year=2011 , date=October 23 , author=Tom Fordyce , title=2011 Rugby World Cup final: New Zealand 8-7 France , work=BBC Sport citation , page= , passage=France were transformed from the feeble , divided unit that had squeaked past Wales in the semi-final, their half-backs finding the corners with beautifully judged kicks from hand, the forwards making yards with every drive and a reorganised Kiwi line-out beginning to malfunction.}}

Lacking force, vigor, or efficiency in action or expression; faint.

That was a feeble excuse for an example.