Another sort of stupid opposite, in this case to "limn":
limn
vt.
limned, limn[ing 7lim4i%, 3ni%8 5ME limnen, contr. < luminen, for enluminen < OFr enluminer < L illuminare, ILLUMINATE6
1 to paint or draw
2 to portray in words; describe
3 [Obs.] to illuminate (manuscripts)
limn[er 7lim4!r, 3n!r8
n.