dormant
The word that ends in "ant" and means sleeping is "recreant." It refers to someone who is cowardly or unfaithful.
brilliant
Luxuriant.
Distant
Instant
The word you are looking for is infant. Infant means small child.
Stagnant
evict or eject
observant
ignorant
fire hydrant
The word pleasant is a term that is used to describe someone with a good nature. Pleasant can also be used to describe anything that is enjoyable to have around.