privative vs unlikely

privative

• something that causes privation or indicates an absence 

• causing privation; depriving 

• consisting in the absence of something; negative 

• indicating the absence of something 

unlikely

• Something or somebody considered unlikely. 

• Not holding out a prospect of success; likely to fail; unpromising. 

• Not likely; improbable; not to be reasonably expected. 

• In an improbable manner.