Unkindly has 5 different meanings across 2 categories:
Adjective · Adverb
lacking in sympathy and kindness
"unkindly ancts"
Not kindly.
Not kind, lacking in friendliness, warm-heartedness or sympathy.
in an unkind manner or with unkindness
"The teacher treats the children unkindly"
In an unkind manner.