هاي التجربة جديدة علينا، بس النتيجة هلا منيحة.

هاي means this in Levantine Arabic, for a feminine singular noun.

Here it refers to التجربة (the experiment/experience), which is feminine, so هاي is the right form.

A few related forms you may hear:

• هاد / هيدا = this (masculine)
• هاي / هيدي = this (feminine)

So هاي التجربة = this experiment.

In Arabic, when a demonstrative like this comes before a noun, the noun is usually definite, so it takes الـ.

So:

• هاي التجربة = this experiment
• literally, something like this the-experiment

That sounds strange in English, but it is normal in Arabic.

If you say هاي تجربة, it would usually not be the normal way to say this experiment.

In Arabic, the verb to be is usually left out in the present tense.

So:

• هاي التجربة جديدة علينا literally = this experiment new to us
• natural English = This experiment is new to us

The same happens in:

• النتيجة هلا منيحة = The result is good now

But in the past or future, Arabic normally does use a form of to be:

• كانت جديدة = it was new
• رح تكون منيحة = it will be good

Because they describe feminine nouns.

In this sentence:

• التجربة is feminine, so: جديدة
• النتيجة is feminine, so: منيحة

This is normal adjective agreement in Arabic: adjectives match the noun in gender (and often also number/definiteness, depending on the structure).

Compare:

• masculine: جديد, منيح
• feminine: جديدة, منيحة

Because here they are predicate adjectives, not attributive adjectives.

Compare these two patterns:

• التجربة جديدة = The experiment is new
• التجربة الجديدة = The new experiment

In your sentence, جديدة and منيحة are part of the statement about the noun, like is new or is good, so they do not take الـ.

This is a very common distinction in Arabic.

علينا is made of:

• على = on
• نا = us

So literally it means on us.

But in the expression جديدة علينا, it means new to us or unfamiliar to us.

This is a normal Arabic pattern:

• جديد عليّ = new to me
• جديد عليك = new to you
• جديد علينا = new to us

So don’t translate it word-for-word; think of it as an expression.

Here بس means but.

It connects the two parts of the sentence:

• This experiment is new to us
• but the result is good now

A useful note: بس can also mean only/just in other contexts. For example:

• بس هيك = just like that
• أنا بس بدي أسأل = I just want to ask

So the meaning of بس depends on context. In your sentence, it clearly means but.

هلا means now, right now, or at this point.

So:

• النتيجة هلا منيحة = the result is good now

It’s a very common Levantine word. You may also see or hear related spellings/pronunciations such as:

• هلأ
• هلق
• هلا

They all belong to the same general colloquial idea of now, with some regional variation.

منيحة is a very common Levantine adjective meaning good, fine, okay, or nice, depending on context.

Here it means good.

Its masculine form is:

• منيح = good
• منيحة = good (feminine)

Since النتيجة is feminine, the sentence uses منيحة.

This is dialectal vocabulary. In Modern Standard Arabic, you’d more often expect جيدة instead.

It is clearly Levantine Arabic.

Some clues are:

• هاي instead of هذه
• بس instead of لكن
• هلا instead of الآن
• منيحة instead of جيدة

A rough Modern Standard Arabic version would be:

• هذه التجربة جديدة علينا، لكن النتيجة الآن جيدة.

So the grammar is similar, but several words are distinctly colloquial/Levantine.