hiddenanswer
nounUK /ˌhɪd.ən ˈɑːn.sər/
US /ˌhɪd.ən ˈæn.sɚ/
An answer that is kept secret or hard to find.
The puzzle had a hidden answer that only careful readers could find.
OTHER MEANINGS
2. A reply that is not shown openly but must be discovered.
The detective searched for the hidden answer in the coded letter.
3. A solution stored away so only certain people can see it.
The teacher kept the hidden answer key in a locked drawer.
4. A truth that is not obvious at first glance.
Sometimes the hidden answer to a problem is the simplest one.