nature , temperament, character, becoming, being, existing, occurring, appearance, any state of mind or body, way of thinking or feeling, sentiment, opinion, disposition, intention, the seat of the feelings or affections, heart, soul, mind, state of absorption, bhava
when you are being in a rueful manner is to be with anger. When you are very mad at something Example: Ari was in a rueful manner because her cousins destroy her D.S
in a judious manner being polite
Honest in a direct and straightforward manner.
A threatening manner is an action that is purposely done to show discontent. A degree of force or a menacing tone also shows that something is being done in a threatening manner.
Airiness is the quality of being light, airy, or insubstantial in quality or manner.
Acting in a professional manner encompasses many things, including being on time, working hard, offering to help on special projects, being flexible, and dressing appropriately.
Indignantly is an adverb, as it describes how an action is being performed or the manner in which it is being carried out.
Being aware of how to conduct your activity in a safe manner. Also being on the look out for any potential dangers.
Condition
In an intelligible manner relevant to the thing being learned.
Shrewdly only means being cunning, or doing things in a cunning manner.
Not always - it depends on the context. There would be an exclamation point if it was being shouted or if it was being said in an exclamatory manner.