Smarty-pants and Swollen-headed

Smarty-pants adjective - Making light of something usually regarded as serious or sacred.

Swollen-headed and smarty-pants are semantically related. In some cases you can use "Swollen-headed" instead an adjective phrase "Smarty-pants".

Swollen-headed adjective - Characteristic of false pride; having an exaggerated sense of self-importance.

Smarty-pants and swollen-headed are semantically related. Sometimes you can replace phrase "Smarty-pants" with "Swollen-headed", this phrases are similar.