covertanswer
nounUK /ˈkʌvət ˈɑːnsə/
US /ˈkoʊvərt ˈænsər/
A secret answer that is hidden or not said out loud.
She gave a covertanswer by nodding her head slightly.
OTHER MEANINGS
2. An answer given in a sneaky or indirect way.
His covertanswer made everyone guess what he really meant.
3. A reply that is kept hidden from other people.
The spy passed a covertanswer to her partner.
4. A coded response that only some people understand.
The children used a covertanswer so the teacher would not know.