curiosity killed the cat
One should not be curious about things that can be dangerous.
ADJ
great, intense
insatiable
His insatiable curiosity led him to ask questions about everything he encountered.
mild
idle, mere, simple
She opened the old box out of simple curiosity, wondering what treasures might be hidden inside.
natural
Children have a natural curiosity about how things work and why the world is the way it is.
open
The child asked questions with open curiosity about how the new machine worked.
morbid
VERB + CURIOSITY
have
arouse, awaken
The mystery of the old house awakened the children's curiosity about what lay inside.
satisfy
CURIOSITY + VERB
get the better of sb, overcome sb
Her curiosity got the better of her, so she opened the mysterious letter addressed to her brother.
PREP
out of ~
She opened the mysterious box out of curiosity, wondering what might be inside.
with ~
She examined the old photograph with curiosity, wondering who the people in it were.
~ about
She asked many questions because she had strong curiosity about how the new technology actually worked.
PHRASES
a sense of curiosity