1) doing things; able to do things; in the habit of doing things (active)

2) in the habit of drinking; often drunk; caused by drinking (drunken)

3) in the habit of asking for information (inquiring)

4) in the habit of saying little; not saying all that is known or felt (reticent)

5) (US = skeptical) in the habit of not believing, of questioning the truth of, claims, statements etc (sceptical)

6) (of a person) in the habit of telling the truth (truthful)