au courant β up-to-date, esp in knowledge of current affairs
cagey β If you say that someone is being cagey about something, you mean that you think they are deliberately not giving you much information or expressing an opinion about it.
chary β If you are chary of doing something, you are fairly cautious about doing it.
conscientious β Someone who is conscientious is very careful to do their work properly.
heedful β taking heed; attentive; mindful; thoughtful; careful: She was always heedful of others' needs.
in the know β to perceive or understand as fact or truth; to apprehend clearly and with certainty: I know the situation fully.
alive β If people or animals are alive, they are not dead.
bright β A bright colour is strong and noticeable, and not dark.
clear-sighted β If you describe someone as clear-sighted, you admire them because they are able to understand situations well and to make sensible judgments and decisions about them.
comprehending β to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
considering β You use considering to indicate that you are thinking about a particular fact when making a judgment or giving an opinion.
contemplating β to think studiously; meditate; consider deliberately.
correct β If something is correct, it is in accordance with the facts and has no mistakes.