1. Excessively
   "a cruelly bitter winter" 
2. With cruelty
   "he treated his students cruelly"
   - sadistically

See also: cruel

• restriction endonuclease
• restriction enzyme
• restriction fragment
• restriction nuclease
• restriction site
• restrictive
• restrictive clause
• restrictive covenant
• restrictively
• restrictiveness
• restring
• restroom
• type genus
• type I allergic reaction
• type I diabetes
• type II diabetes
• type IV allergic reaction
• type metal
• type O
• type of architecture
• type slug
• type species
• type specimen
• typecast
• typeface