able to adjust to new conditions.

feeling or appearing troubled or nervous.

enjoyable and pleasurable; pleasant.

experiencing worry, unease, or nervousness, typically about an imminent event or something with an uncertain outcome.

hostile and aggressive

well meaning and friendly

not giving sufficient attention or thought to avoiding harm or errors

having the necessary ability, knowledge, or skill to do something successfully

​(of a person, behavior, or process) unchanging in achievement or effect over a period of time.