ad. very much; stronglyad. (`ill' is often used as a combining form) in a poor or improper or unsatisfactory manner; not wellad. in a disobedient or naughty wayad. evilly or wickedlyad. unfavorably or with disapprovalad. to a severe or serious degreead. with great intensity (`bad' is a nonstandard variant for `badly')ad. without skill or in a displeasing mannerad. in a disadvantageous way; to someone's disadvantagead. with unusual distress or resentment or regret or emotional display