A man who doesnt Advertise himself- Single Word

What do you call a person who doesn't want to advertise himself? He may be somebody special but doesn't like to talk about his achievement or advertise himself. What is the Adjective that describes such a trait?

Solution 1:

Unpretentious: Not attempting to impress others with an appearance of greater importance, talent, or culture than is actually possessed. (Lexico)

Example: ‘in spite of his fame he was thoroughly unpretentious’ More example sentences

Self-effacing: Not claiming attention for oneself; retiring and modest. (Lexico)

Example: his demeanour was self-effacing, gracious, and polite.

You could also say reticent, unostentatious or unassuming.

Solution 2:

I would say that the person was modest:

[Merriam-Webster]
1 a : placing a moderate estimate on one's abilities or worth
1 b : neither bold nor self-assertive : tending toward diffidence

Alternatively, depending on the specific interpretation, they could also be humble:

[Merriam-Webster]
1 : not proud or haughty : not arrogant or assertive
2 : reflecting, expressing, or offered in a spirit of deference or submission
// a humble apology

Solution 3:

I'd use one of 'humble' or 'modest'

Solution 4:

How about understated?

From TFD:

understated: not obvious; subtle // restrained; de-emphasized; low-key

From Cambridge:

understated: not trying to attract attention or impress people, e.g., He's very elegant, in an understated way.

Example:

Jane was always understated when it came to the value of her contributions.

It's implicit in saying that Jane is understated that she has an understated personality, manner, approach.