strange or unnatural in a way that might cause uneasiness or slight fear

不気味な (bukimina), ぞっとする (zotto suru)
(of a person) capable of performing tasks with the least amount of wasted time, effort, or resources

効率的な, 有効な
capable of adjusting easily to different situations, circumstances, or needs

柔軟な (じゅうなんな), フレキシブル
believing that good things can happen or perfection can be achieved, while it is nearly impossible or impractical

理想主義的な, 理想的な
showing respect to what other people say or do even when one disagrees with them

寛容な (かんような), 受容的な (じゅようてきな)
hard-working and productive

勤勉な, 精励な
(of a person) resistant to authority or control, often challenging established norms or rules

反抗的な (はんこうてきな), 無法な (むほうな)
doing things or moving in a way that lacks control and care, usually causing accidents

不器用な(ぶきような), ぎこちない
not pleased or happy with something, because it is not as good as one expected

不満足な, 不満な
showing a proud, unpleasant attitude toward others and having an exaggerated sense of self-importance

傲慢な (ごうまん な), 横柄な (おうへい な)
showing care and understanding toward other people, especially when they are not feeling good

同情的な, 思いやりのある
having or showing a negative view of the future and always waiting for something bad to happen

悲観的な, ネガティブな
unwilling to change one's attitude or opinion despite good reasons to do so

頑固な (ganko na), 強情な (gojou na)
experiencing frequent changes in mood, often without apparent reason or explanation

気まぐれな, ムーディーな
feeling or showing gratitude or thankfulness toward someone or something
highly skilled, proficient, or talented in a particular activity or field

熟練した, 巧みな
unfriendly or reluctant to socializing

冷淡な (れいたん な), よそよそしい (よそよそしい)
