Yes, it is. It is the comparative form of the adjective smart (meaning more intelligent, not more fashionable).
Dative :smart Comparative; Smarter Superlative; Smartest
Yes, there has been at least one girl who was smarter than at least one boy.
Cautious IS an adjective. An adjective is an action!
The word "it" is not an adjective (it is a pronoun). A word is an adjective if it modifies (defines, characterizes) a noun or pronoun. The big tent - big is an adjective He is tall - tall is an adjective This key - this (while arguably called a determiner) is a demonstrative adjective
probable is an adjective
It can be an adverb (much smarter, much more easily), but it can also be an adjective (e.g. much has been said),
smarter
The coyote is smarter
Dumber is the opposite of smarter.
A raven seems to be smarter.
they get smarter bye watch the others
Yes it does make you smarter
They are smart, but humans are smarter.
The superlative of smarter is "smartest."
Smartest is the superlative form of the adjective smart. You use it when you are saying something / someone is the smartest of a group. Max is the smartest cat we have ever had. (the group is all the cats we have had). I was the smartest in the class until Jade came. If you are talking about two things / people then you use the comparative form - smarter: I am smarter than my brother.
Smarter (in the sense of cleverer) = Acutulior
Coupon Smarter was created in 2008.