Baba hajisikii vizuri leo.

Hajisikii is one verb made of several pieces:

• ha- = negative for a he/she subject
• -ji- = self
• -siki- = the verb idea from kusikia, which can mean hear or feel
• final -i = the negative present form ends in -i, not -a

So hajisikii literally works like he/she is not feeling himself/herself.

In this sentence, the subject is Baba, so the whole idea is Baba is not feeling well today.

The -ji- is the reflexive marker, meaning self.

That matters because:

• kusikia often means to hear
• kujisikia means to feel oneself, which is how Swahili expresses to feel in the sense of health or condition

So:

• hasikii vizuri would usually mean he/she does not hear well
• hajisikii vizuri means he/she does not feel well

That little -ji- changes the meaning a lot.

Because Swahili usually forms this kind of negative present verb differently from the affirmative.

Compare:

• affirmative: anajisikia = he/she feels / is feeling
• negative: hajisikii = he/she does not feel / is not feeling

What changes?

• the affirmative subject marker a- becomes negative ha-
• the tense marker -na- disappears
• the final -a changes to -i

So hanajisikia is not the normal form here. Hajisikii is the correct standard form.

Because baba refers to a person, and people normally take class 1 singular agreement in Swahili.

That means the verb agrees as:

• affirmative: a-
• negative: ha-

So:

• Baba anajisikia...
• Baba hajisikii...

Even though baba does not look like a typical noun class 1 noun such as mtu, it still behaves like one in agreement because it refers to a human being.

Because vizuri is the form used adverbially here, meaning well.

A useful contrast:

• nzuri = good / nice as an adjective
• vizuri = well as an adverb

In this sentence, vizuri describes how he feels, so English also uses well, not good.

That is why hajisikii vizuri means is not feeling well, not is not feeling good in the basic grammatical sense.

Because Swahili packs a lot of information into the verb itself.

In English, you need separate words:

• he does not feel

In Swahili, the verb already includes:

• the subject
• the negative
• the verb meaning

So hajisikii already contains the idea of he does not feel.

Since Baba is also stated, the subject is extra clear, but Swahili still keeps the subject agreement on the verb.

It can refer to both, depending on context.

For example, kujisikia vizuri can mean:

• physically well
• emotionally okay
• generally in good condition

But in a sentence like Baba hajisikii vizuri leo, most listeners will naturally think of physical health unless the context suggests emotions or mood.

So the exact nuance comes from the situation.

Leo means today. It tells you the time frame.

Without leo, the sentence would simply mean that Baba is not feeling well, with no explicit time word.

Yes, leo can move for emphasis. For example:

• Baba hajisikii vizuri leo.
• Leo Baba hajisikii vizuri.

Both are natural. The version with leo at the end is very neutral and common.

On its own, baba means father or dad, but in actual use it often works like English Dad, especially in family context.

So depending on context, Baba hajisikii vizuri leo could sound like:

• Dad isn’t feeling well today
• Father isn’t feeling well today

If you specifically want to say my father, you would say:

• baba yangu

So baba by itself does not explicitly say my, but context often makes that clear.

Yes, if the subject is already understood from context.

Because hajisikii already means he/she is not feeling well, you can omit the noun when everyone knows who you are talking about.

So:

• Baba hajisikii vizuri leo = explicit subject
• Hajisikii vizuri leo = He/She isn’t feeling well today

Swahili often leaves out the separate subject noun when the verb already makes it clear enough.