(of size or amount) small, little, tiny / (of age) young, little

river, stream

village

if done badly / perhaps

not good at / bad at

unskilled, bad at, poor at, weak at, incompetent / superficial, halfhearted, half-assed, careless / smaller or lesser in degree

a mistake, a poor result, a screwup

to make a mistake, to screw up

humble

the lower part, especially downstream or downwind / someone at a disadvantage or lower relative to another person, in terms of rank or ability