Adjective

(en adjective)

Strongly disapproved of.

*

Belittled; insulted

(computing) Obsolescent]]; said of a construct in a computing language considered old, and planned to be [[phase out, phased out, but still available for use.

* 2002 , Steven E. Callihan, Cascading Style Sheets (CSS) by Example

Just because an element or attribute is deprecated doesn't mean that it can't be used on a webpage.

* 1999 . Raggett, Dave, et. al. HTML 4.01 Specification , Conformance: requirements and recommendations. W3C

A deprecated element or attribute is one that has been outdated by newer constructs.

Note that deprecated functions are not removed.

Adjective

(en adjective)

No longer in use; gone into disuse; disused or neglected (often by preference for something newer, which replaces the subject).

* {{quote-magazine, date=2013-07-20, volume=408, issue=8845, magazine=(The Economist)

, title= The attack of the MOOCs , passage=Since the launch early last year of […] two Silicon Valley start-ups offering free education through MOOCs, massive open online courses, the ivory towers of academia have been shaken to their foundations. University brands built in some cases over centuries have been forced to contemplate the possibility that information technology will rapidly make their existing business model obsolete .}}

(biology) Imperfectly developed; not very distinct.