ADJ about n
The 'articulate' and 'reticent' group
These adjectives indicate that someone speaks openly about something or is unwilling to speak openly.
She is highly intelligent, and sometimes bitterly articulate about her situation.
Then, to my surprise - for she is notoriously coy about her private life - she started talking about her marriage.
She is disarmingly frank about her strengths and her failings.
He's indiscreet about things that don't matter.
The preposition about is sometimes followed by an '-ing' clause.
Do you feel that your staff can be fairly open about admitting failure?
The government has told the scientists to remain silent about their work.
I'm very upfront about being happily married.
The preposition about is sometimes followed by an '-ing' clause, particularly in the case of coy, reticent, vocal, and vociferous. When reticent is used in this way, it often means that someone is unwilling to do something.
Government officials have been reticent about giving details of exactly what did happen.
In the case of articulate, evasive, forthcoming, reticent, secretive, and silent, the preposition is sometimes followed by a wh-clause.
articulate blatant brazen cagey candid coy direct discreet effusive evasive forthcoming forthright frank indiscreet laconic mute open outspoken public quiet reticent secretive silent sneaky straightforward taciturn uninhibited upfront vocal vociferous
She was evasive about what she wanted help with.
Dorothy was not very forthcoming about what she wanted to do.
Everyone has been trying to get into the new Jones house to see what they've done but they have been very secretive about what has been going on there.