teenage Antonyms

not as young as one was not long for this world no spring chicken over the hill grey-haired gray-haired long in the tooth doddery doddering white-haired uncollectible of age old as time older than dirt not as young as one used to be in one's dotage long in the teeth grey-bearded advanced in years up in years extremely old as old as time as old as the sea past it older than the hills older age-old grey gravid full-grown elderly elder dotard decrepit centenarian ancient aging aged grizzled hoary venerable superannuated septuagenarian senior senile senescent ripe old octogenarian nonagenarian