kanozyo ha asa kara sukosi henna kibun datta rasiku, kaigityuu ha amari hanasanakatta.

Here, らしく comes from らしい, and it means apparently / it seems / I heard that.

So 彼女は朝から少し変な気分だったらしく means something like:

• Apparently, she had been feeling a little strange since the morning
• It seems she had been in a slightly strange mood since morning

A key nuance: らしい often suggests the speaker is not stating this as a direct, certain fact, but as something inferred or learned indirectly.

Also, らしく is the continuative form of らしい, which lets it connect to the next clause:

• だったらしい。 = It seems she was...
• だったらしく、... = It seems she was..., and/so...

Because 変 is a na-adjective.

When a na-adjective comes before a noun, you add な:

• 変な気分 = a strange feeling / a strange mood
• 静かな部屋 = a quiet room
• 便利な道具 = a convenient tool

So:

• 変だ = is strange
• 変な気分 = a strange feeling

That な is required before the noun 気分.

In this sentence, 気分 means feeling, mood, or state of mind/body.

So 変な気分 is not literally a strange personality or a strange character. It means:

• feeling odd
• being in a strange mood
• feeling a bit off

Depending on context, it can refer to emotional mood, physical condition, or a vague inner feeling.

朝から means from the morning or since morning.

The particle から marks a starting point in time. So:

• 朝から = starting in the morning
• 昨日から = since yesterday
• 9時から = from 9 o’clock

In this sentence, it suggests that her strange feeling began in the morning and continued into the time of the meeting.

少し means a little or slightly, and here it modifies the idea of 変な気分.

So the meaning is:

• a little strange
• slightly off
• somewhat in a strange mood

It softens the description. Without 少し, 変な気分 would sound stronger.

Compare:

• 少し変な気分 = a slightly strange feeling
• 変な気分 = a strange feeling

Because 気分 is a noun, and the phrase 変な気分 behaves as a noun phrase, so it takes だ as the copula.

Past plain form:

• だ → だった

Then らしい attaches to that:

• 変な気分だったらしい = it seems she was in a strange mood

And in this sentence it becomes the connecting form:

• 変な気分だったらしく、...

So the structure is:

• 変な気分 = strange mood/feeling
• だった = was
• らしく = apparently / it seems, and...

会議中は means as for during the meeting or during the meeting, at least.

会議中 means during the meeting / in the middle of the meeting. Adding は makes that time frame the topic or gives it a slight contrastive feel.

So:

• 会議中はあまり話さなかった = During the meeting, she didn’t talk much.

The は can imply something like:

• maybe at other times she spoke,
• but during the meeting, she did not.

This use of は for time expressions is very common.

あまり is commonly used with a negative verb to mean not very much or not much.

So:

• あまり話さなかった = did not talk much

Very common pattern:

• あまり + negative

Examples:

• あまり食べない = don’t eat much
• あまり好きじゃない = don’t like it very much
• あまり寝なかった = didn’t sleep much

So in this sentence, it means she spoke very little during the meeting.

話さなかった simply means didn’t speak / didn’t talk.

That is the most natural choice here if you just want to say that, during the meeting, she spoke little or not much.

話していなかった would focus more on an ongoing state of not being in the act of speaking, which is less natural in this context unless you are emphasizing continuous non-participation in a more specific way.

So:

• 話さなかった = she didn’t talk much
• 話していなかった = she was not talking

The first fits this sentence better.

Yes. Japanese often omits repeated subjects when they are already clear from context.

So even though the second clause does not repeat 彼女, it is still understood:

• 彼女は ... 話さなかった
• She ... did not talk much.

This is extremely common in Japanese.

The sentence has two linked parts:

1. 彼女は朝から少し変な気分だったらしく
2. 会議中はあまり話さなかった

The first part gives background or a likely reason:

• Apparently she had been feeling a little strange since morning,

The second part gives the result/observation:

• and during the meeting she didn’t talk much.

So the connection is something like:

• Apparently she had been feeling a little off since morning, so she didn’t talk much during the meeting.

Japanese often leaves this kind of logical connection slightly implicit rather than spelling out so directly.

They come from the same base, but they do different jobs.

• だったらしい = sentence-ending form
  It seems she was...
• だったらしく = connecting form
  It seems she was..., and/so...

Examples:

• 彼女は変な気分だったらしい。
  It seems she was in a strange mood.

• 彼女は変な気分だったらしく、あまり話さなかった。
  It seems she was in a strange mood, and so she didn’t talk much.

So らしく lets the sentence continue.

It is in plain style, not polite -ます style.

You can see that in forms like:

• だった
• 話さなかった

This kind of style is very common in:

• written narration
• casual explanation
• reports in plain form
• storytelling

A more polite version might look like:

• 彼女は朝から少し変な気分だったらしく、会議中はあまり話しませんでした。

So the sentence is not rude; it is just plain-style Japanese.