Thirstier or more thirsty ?
The more you say ,the thirstier you become
The more you say ,the more thirsty you become

how about tired
The more you say ,the tireder you become
The more you say ,the more tired you become

Question

Thirstier or more thirsty ?
The more you say ,the thirstier you become 
The more you say ,the more thirsty you become

how about tired
The more you say ,the tireder you become 
The more you say ,the more tired you become

Answer

The general rule is that two-syllable adjectives that end in -y (such as "thirsty" , "happy," or "busy") take -er for the comparative and -est for the superlative. So it should be "thirsty / thirstier / thirstiest"

Answer

Oh, and it's also definitely, "more tired," not "tireder."

Answer

'Tired' is a single syllable adjective, so 'more tired' is correct. You may hear people say 'tireder' informally or colloquially though as we don't always follow the rules!

As thirsty contains two syllables, 'thirstier' is more appropriate. Again, people may say 'more thirsty', but it's not strictly correct, because...English!

Hope this helps, thank you for your question :)

Answer

Its comparative is thirstier and its superlative is thirstiest.

Answer

Its comparative is thirstier and its superlative is thirstiest.