Know-it-all and Self-indulgent

Know-it-all noun - Someone who thinks he knows everything and refuses to accept advice or information from others.

Self-indulgent and know-it-all are semantically related. In some cases you can use "Self-indulgent" instead an adjective phrase "Know-it-all".

Self-indulgent adjective - Given to or marked by excessive gratification of one's desires.

Know-it-all and self-indulgent are semantically related. Sometimes you can use "Know-it-all" instead an adjective phrase "Self-indulgent".