Dotard and Geek

Dotard noun - An oldster in his dotage; someone whose age has impaired his intellect.

Geek and dotard are semantically related. In some cases you can use "Geek" instead a noun "Dotard".

Geek noun - A person slavishly devoted to intellectual or academic pursuits.

Dotard and geek are semantically related. Sometimes you can use "Dotard" instead a noun "Geek".