The word you're looking for is Pedantic.
Philosophy is the academic discipline concerned with first causes and principles and of the purpose and meaning of existence.
Reassured; at ease is the opposite of concerned.
It is a slang term for educated.
it means people who are educated in this world
Similar sounding words but with different meaning - example: Desert and Dessert
It is concerned with frequency.
No. "Educated" is either an adjective meaning "having attained a level of higher education" or a verbmeaning the "past tense of educate".
care
The name Arifa means "intelligent and well educated."
To prepare land for the growing of crops.
cheating
in a dictionary