Hammy and Preposterous

Hammy adjective - Given to or marked by attention-getting behavior suggestive of stage acting.

Preposterous and hammy are semantically related. in overstated topic. In some cases you can use "Preposterous" instead an adjective "Hammy".

Preposterous adjective - Conceived or made without regard for reason or reality.

Hammy and preposterous are semantically related. Sometimes you can use "Hammy" instead an adjective "Preposterous".