यह हल उस हल से बदतर है।

• यह = this
• हल = solution
• उस हल से = than that solution
• बदतर = worse
• है = is

So the literal order is:

This solution that solution than worse is.

That is normal Hindi word order.

Because से is a postposition, and Hindi uses the oblique form of pronouns/demonstratives before postpositions.

So:

• वह हल = that solution
• उस हल से = than/from that solution

The same pattern happens with this:

• यह हल = this solution
• इस हल से = than/from this solution

So वह changes to उस before से.

Because there is no postposition after यह here. It is just the subject of the sentence, so it stays in the direct form:

• यह हल = this solution

If you added a postposition, then it would become इस:

• इस हल में = in this solution
• इस हल से = from/than this solution

So यह at the start is exactly what you expect.

Here, से marks the thing being compared against, so it works like English than.

So:

• उस हल से बदतर = worse than that solution

Be aware that से has other meanings in other sentences too, such as from, by, or with, depending on context. In this sentence, its job is specifically comparative.

बदतर means worse.

It is correct, but it can sound a bit more formal, literary, or Urdu-influenced than the most everyday alternatives. In ordinary speech, people may also say things like:

• यह हल उस हल से बुरा है।
• यह हल उस हल से खराब है।

In Hindi, the comparison is often shown by से, so even a basic adjective like बुरा can mean worse in context.

Because बदतर tells you the quality, but से tells you what it is being compared to.

Compare:

• यह हल बदतर है। = This solution is worse / in a worse state.
• यह हल उस हल से बदतर है। = This solution is worse than that solution.

So से is what makes the comparison target explicit.

Yes, you can.

• यह हल उस हल से बदतर है। = This solution is worse than that solution.
• यह हल उससे बदतर है। = This solution is worse than that one / than that.

Repeating हल makes the sentence clearer, especially if there could be any confusion about what उससे refers to.

Usually no. बदतर is generally treated as an indeclinable adjective, so it stays the same.

What usually changes instead is the verb:

• यह हल बदतर है। = This solution is worse.
• ये हल बदतर हैं। = These solutions are worse.

So the adjective stays बदतर, while है / हैं changes.

Yes, हल is masculine.

In this sentence, that does not show up very clearly because:

• बदतर does not change form
• यह and उस do not show gender here

But gender does matter in many other Hindi sentences. For example, with a changing adjective:

• अच्छा हल = good solution
• अच्छी किताब = good book

So gender is still important in Hindi, just not very visible in this particular sentence.

Because Hindi normally puts the verb, including to be, at or near the end of the sentence.

So the pattern here is:

subject + comparison phrase + adjective + है

That is why you get:

यह hal उस हल से बदतर है।

In English, is comes earlier. In Hindi, है usually comes at the end.

A simple pronunciation guide is:

yeh hal us hal se badtar hai

A few notes:

• यह is often pronounced yeh in everyday speech
• उस से is very often written together as उससे
• है is pronounced hai, though in casual speech it may sound a bit shorter

So a natural spoken version may sound close to:

yeh hal us-hal-se badtar hai