definition
not far form top to bottom; lacking depth of intellect or knowledge; concerned only with what is obvious
sentence
Shallower earthquakes tend to cause more damage at the surface.
They argues that Facebook is a lot like most reality shows: shallow, narcissistic, digitally or surgically enhanced, but mostly harmless.
difficulty
easy
toefl frequency
3
toefl classification
adverb
shallowly
adjective
shallow
noun
shallowness