1. In a manner differing from the usual or expected
   - curiously, peculiarly 
2. In a strange manner
   - queerly, strangely, funnily

See also: odd

• decortication
• decorum
• decouple
• decoy
• decrease
• decreased
• decreasing
• decreasing monotonic
• decree
• decree absolute
• decree nisi
• decreed
• decrement
• decrepit
• decrepitate
• decrepitation
• decrepitude
• decrescendo
• decrescent
• decretal
• decrier
• decriminalisation
• decriminalise
• decriminalization
• decriminalize