How to say at your age you should know better. in Japanese
1)
いいいい(ii) (adj-t,adv-to) easy/simple/plain/good年年(nen) (ctr) counter for yearsし(num) 10^24/septillion/quadrillionてそんno dictionary result, likely a conjigated verbなな(na) (prt) connects adj to noun/indicates emotion or emphasis/command/prohibition馬鹿馬鹿(baka) (n) fool/idiot/trivial matter/folly/absurdity/foolish/stupid/dull/absurd/ridiculous/ surf clamなな(na) (prt) connects adj to noun/indicates emotion or emphasis/command/prohibitionまねよせno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb。。(。) Japanese period "."
