IPA: /ˈɛθɪkəl/
KK: /ˈɛθɪkəl/
Relating to what is right and wrong in terms of behavior and morality.
It is important for companies to make ethical decisions that benefit society.
Relating to principles of right and wrong behavior; moral.
The company made an ethical decision to stop using harmful chemicals in their products.
Ethical → It is formed from "ethos" (from Greek ἦθος, meaning character or custom) and the suffix "-ical" (meaning pertaining to). The word "ethical" refers to matters pertaining to character or moral principles.
Think of 'ethos' which relates to character or moral values — this helps you remember that 'ethical' means relating to what is right or wrong in behavior.