'Militant' comes to mind.
"Antagonistic" could be it, but that's more like "willing to fight" or "looking to fight." "Recalcitrant" may also fit the bill. how about combatant
The word that ends in "ant" and means sleeping is "recreant." It refers to someone who is cowardly or unfaithful.
Vacant.
slant
it means in into
dormant
brilliant
Luxuriant.
triumphed
Distant
It means, "ant," the insect.
Important
The word you are looking for is infant. Infant means small child.