noun - a person who is authorized to act on behalf of someone else
adverb, formal - in a way that is very noticeable or unusual; exceptionally or remarkably
noun - a difficult or dangerous situation, especially one that is serious or unfortunate
adverb - in a way that is not needed or without a good reason
noun, formal - something that is an unfair or unreasonable burden or inconvenience to someone
adjective - requiring a lot of chewing because it is thick, sticky, or dense
adjective, American English - someone who is unreliable or behaves in an odd or unpredictable way