IPA: //ʌnˈkaɪndər//
KK: /ʌnˈkaɪndər/
This word describes someone or something that is less kind than another person or thing.
She was unkind to her friend, but her sister was even unkind-er.
Unkinder → It is formed from the prefix "un-" (meaning not) and the root "kind" (from Old English *cynd*, meaning nature or character). The suffix "-er" (meaning one who) indicates a comparative form. The word "unkinder" means not kind or one who is less kind than another.
Think of 'not' ('un-') being added to 'kind' — this helps you remember that 'unkinder' means someone who is not kind or less kind.