1. Lacking in sympathy and kindness
   "unkindly acts"
   - unsympathetic

1. In an unkind manner or with unkindness
   "The teacher treats the children unkindly"

See also: unkind

Antonym: kindly

• fast reactor
• fast time scale
• fast track
• fast-breaking
• fast-flying
• fast-footed
• fast-growing
• fast-paced
• fast-talk
• fastback
• fastball
• fasten
• fasten on
• fastened
• fastener
• fastening
• faster
• fastest
• fastidious
• fastidiously
• fastidiousness
• fastigiate
• fasting
• fastly
• fastnacht