A: Whose book is this? Yours? B: Oh, it's Mark's. Mine is -----.

I know * Mine is thinner.* is correct. How about Mine is the thinner. Is it grammatical to add the article?

Thanks a lot.

  • 1
    as in 'the thinner book often contains less words.'? yes it is.
    – JMP
    May 12, 2017 at 6:42
  • 4
    In this type of usage, you would usually say, "Mine is the thinner one".
    – satnam
    May 12, 2017 at 6:52

2 Answers 2


You can say "Mine is the thinner." It is uncommon, and sounds a little poetic, but it isn't wrong, and would be universally understood by native speakers.

With superlatives, what you are proposing is more common. I would have a hard time coming up with a general preference between the following three sentences:

We both have thin cats, but... mine is thinnest. [OR]...mine is the thinnest one. [OR]...mine is the thinnest.

With comparatives, the three forms are all correct, but the first two are more common:

We both have thin cats. Mine is thinner. [OR] Mine is the thinner one. <--More common

We both have thin cats. Mine is the thinner. <-- Less common, but acceptable.

With absolutes, however, you can't use all three of those constructions

We both have cats. Mine is thin. [OR] Mine is the thin one. <---Fine

We both have cats. Mine is the thin. <-- NOT OK


Satnam has the answer here. Generally you would put an object after the adjective. "Mine is the thinner one." would be the best way of expressing the idea.

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