weakling
nounUK /ˈwiːklɪŋ/
US /ˈwiːklɪŋ/
A weakling is a person or animal that is not strong.
The big bully called the small boy a weakling.
OTHER MEANINGS
2. A person who lacks courage or determination.
Don't be a weakling—stand up for your friend.
3. An animal that is smaller or weaker than the others in its group.
The weakling of the litter needed extra food.
4. Something that is poorly made or easily broken.
That old chair is a weakling and will collapse if you sit on it.