Inflated self-opinion and Swelled head

Swelled head and inflated self-opinion are semantically related. In some cases you can use "Swelled head" instead a noun phrase "Inflated self-opinion".

Swelled head noun - An often unjustified feeling of being pleased with oneself or with one's situation or achievements.

Inflated self-opinion and swelled head are semantically related. You can use "Inflated self-opinion" instead a noun phrase "Swelled head".