Recent sex: cold, messy and unnecessary

Wiktionary Word definitions in Wiktionary
a. Growing out in an abnormal or morbid manner or as a superfluity. n. 1 Something growing, usually abnormally, out of something else. 2 (context phonetics English) A sound in a word without etymological reason.

WordNet Word definitions in WordNet
adj. forming an outgrowth (usually an excessive outgrowth)

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
mid-15c., from Latin excrescentem (nominative excrescens ), present participle of excrescere "grow out, grow up" (see excrescence ).

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Excrescent \Ex*cres"cent\, a. [L. excresens, -entis, p. pr. of excrescere to grow out; ex out + crescere to grow. See Crescent .] Growing out in an abnormal or morbid manner or as a superfluity. Expunge the whole, or lip the excrescent parts. --Pope. Excrescent ...