na-adjective, noun
suitable; appropriate; adequate
Only with reading てきとう
Describes something that fits the situation or meets requirements. Can be used for people, actions, or things. Reading is てきとう.
この仕事に適当な人を探しています。
We are looking for a suitable person for this job.
適当な量の塩を加えてください。
Please add an appropriate amount of salt.
na-adjective, noun
half-hearted; sloppy; irresponsible
Casual, often negative sense: doing something without proper care, just going through the motions, or being lazy. Frequently written in katakana as テキトー to emphasize this meaning.
彼はいつも適当な返事しかしない。
He always gives only half-hearted replies.
そんなテキトーな仕事じゃダメだよ。
That kind of sloppy work won't do.