Learn English – the difference between “Adjective” and ” That + adjective”

adjective-phrasesmeaning

I have two sentences:

I did not finish the book – it was not interesting.

and

I did not finish the book – it was not that interesting.

What is the difference between "interesting" and "that interesting" in these sentences? And so, what is the difference between "Adjective" and "That + adjective"? I've searched on many dictionaries but found nothing about this.

Best Answer

that in this pattern refers back to the context supplied by the statement in the prior clause.

I did not eat the cake. It was not that tasty.

that tasty = tasty enough that I would want to eat it.

I finished the cake in just two bites. The piece was not that large.

that large = so large that it would have required more than two bites

I had hoped to see the game. But admission cost $250. I am not that much of a fan.

that much of a fan = so fanatical that I would be willing to spend $250 to watch the team play.

I tried her cake. It was not that delicious.

that delicious = as delicious as I expected it to be | as delicious as other people said it was | so delicious that I will praise it