Learn Farsi: کیفیت این کار کمتر از آن کار است. - The quality of this work is lower than that work's.

In English, the comparative of "little" is the irregular word "less". But Farsi is actually much simpler here! It just takes the standard adjective کم (little/low) and adds the regular comparative suffix -تر to make کمتر (less/lower).

Why is the word از used in this sentence?

از usually means "from", but in comparative sentences, it translates to "than". Whenever you use a comparative adjective ending in -تر (like کمتر), you use از right after it to introduce the thing being compared to. Literally, the Farsi structure translates to "less from that work".

The English translation says "that work's", but Farsi just says آن کار (that work). Why isn't there a possessive marker?

English uses "that work's" to avoid repeating the word "quality". Farsi doesn't require this possessive shortcut. It is perfectly natural and grammatically correct in Farsi to compare "the quality of this work" directly to "that work". The context makes the exact comparison obvious.

Is there an ezafe in the phrase کیفیت این کار?

Yes! There is an invisible ezafe vowel (-e) on the end of کیفیت (quality). This connects the noun to the phrase that describes it. It is pronounced keyfiyat-e in kār, linking "quality" with "this work".