loon 2 
(ln)
(ln)n.
Informal
Informal
A person who is foolish or crazy.
[Probably from LOON1 (from its loud cry) and influenced by LUNATIC.]
- discriminately
- discriminating
- discriminatingly
- discrimination
- discriminational
- discriminative
- discriminatively
- discriminator
- discriminatorily
- discriminatory
- discursive
- discursively
- discursiveness
- discus
- discuss
- discussable
- discussant
- discussible
- discussion
- disdain
- disdainful
- disdainfully
- disdainfulness
- disease
- diseased