1. weak
weak point
He had a weak point --this Fortunato --although in other regards he was a man to be respected and even feared. He prided himself on his connoisseurship in wine.
A man of weak will is the target of criticism; even his friends would badger him into correcting his defects.
Freedom is akin to the rarified air of a mountain top. Weak men cannot bear one or the other.
She's weak, powerless. A mere human.
Thus, this is an ad hoc solution - good in practice but theoretically weak.
Japan's competitiveness is very strong in industrial products, but weak in agricultural products.
The weak point of this book is that it's less than persuasive when the married author recommends not being married.
Dairo has a weakness for white beautiful women
“she was recovering from the flu and was very weak” “the salamander's tail may be broken off at a weak spot near the base”
This child is weak. / She's strong, I'm weak. / To be honest, I feel a little weak.
Eric who was a weak prince issued a bad coinage which excited great discontent among the Danes.
Jerry’s still weak after his operation. a weak excuse. a weak tea. His spelling was weak.
you’re weak because you can’t make a decision...
Although the economy is weak, some companies are still making a profit.
2. flimsy
The flimsy stalls in this restroom offer very little privacy.
a flimsy table; flimsy construction; a flimsy excuse
These flimsy skirts are really popular. Would you like to try one on?
Bush was seen boozing, going to war on a flimsy premise and threatening the family legacy.
a flimsy dress
3. feeble
His pulse was feeble.
She made a feeble attempt to explain the issue.
The old lady has been rather feeble since her illness.
He was too feeble to do manual labor.
Superstition is the religion of feeble minds.
feeble light
auto industrie in the USA in 2009 was feeble
The light was feeble and he could see but little.
It was a feeble excuse he gave for being late. It did not convince anyone.
The feeble old man collapsed on the sidewalk.
The old woman may have been feeble and unable to walk well, but her mind was as sharp as a tack.
... could only power one feeble bulb.
The feeble patient is suffering from stomach cancer.