Defunct vs. Old — What's the Difference?

No longer in existence or use

Having lived for a long time; no longer young

Deceased, dead.

Belonging to the past; former

No longer in use or active, nor expected to be again.

Of a specified age

(business) No longer in business or service, nor expected to be again.

Used to express affection, familiarity, or contempt

(computing) Specifically, of a process: having terminated but not having been reaped (by its parent or an inheritor), and thus still occupying a process slot. See also zombie, zombie process.

Having lived or existed for a relatively long time; far advanced in years or life.

(linguistics) (of a language) No longer spoken.

Relatively advanced in age

To make defunct.

Made long ago; in existence for many years

The dead person (referred to).

Of or relating to a long life or to people who have had long lives

Having finished the course of life; dead; deceased.

Having or exhibiting the physical characteristics of age

No longer in effect or use; no longer operating; as, a defunct business; a defunct law.

Having or exhibiting the wisdom of age; mature

A dead person; one deceased.

Having lived or existed for a specified length of time

No longer in force or use; inactive;

Exhibiting the effects of time or long use; worn

Having ceased to exist or live;

Known through long acquaintance; long familiar

Skilled or able through long experience; practiced

Belonging to a remote or former period in history; ancient

Belonging to or being of an earlier time

Often Old Being the earlier or earliest of two or more related objects, stages, versions, or periods.

Having become slower in flow and less vigorous in action. Used of a river.

Having become simpler in form and of lower relief. Used of a landform.

Used as an intensive

Used to express affection or familiarity

An individual of a specified age

Old people considered as a group. Used with the

Former times; yore

Of an object, concept, relationship, etc., having existed for a relatively long period of time.

Of a living being, having lived for most of the expected years.

Of a perishable item, having existed for most of, or more than, its shelf life.

Of a species or language, belonging to a lineage that is distantly related others

Having been used and thus no longer new or unused.

Having existed or lived for the specified time.

(heading) Of an earlier time.

Former, previous.

That is no longer in existence.

Obsolete; out-of-date.

Familiar.

(UK) Being a graduate or alumnus of a school, especially a public school.

Tiresome after prolonged repetition.

Said of subdued colors, particularly reds, pinks and oranges, as if they had faded over time.

A grammatical intensifier, often used in describing something positive, and combined with another adjective.

(obsolete) Excessive, abundant.

|invariable plural only}} People who are old; old beings; the older generation, taken as a group.

(slang) A person older than oneself, especially an adult in relation to a teenager.

One's parents.

A typically dark-coloured lager brewed by the traditional top-fermentation method.

Open country.

Not young; advanced far in years or life; having lived till toward the end of the ordinary term of living; as, an old man; an old age; an old horse; an old tree.

Not new or fresh; not recently made or produced; having existed for a long time; as, old wine; an old friendship.

Formerly existing; ancient; not modern; preceding; original; as, an old law; an old custom; an old promise.

Continued in life; advanced in the course of existence; having (a certain) length of existence; - designating the age of a person or thing; as, an infant a few hours old; a cathedral centuries old.

Long practiced; hence, skilled; experienced; cunning; as, an old offender; old in vice.

Long cultivated; as, an old farm; old land, as opposed to new land, that is, to land lately cleared.

Worn out; weakened or exhausted by use; past usefulness; as, old shoes; old clothes.

More than enough; abundant.

Aged; antiquated; hence, wanting in the mental vigor or other qualities belonging to youth; - used disparagingly as a term of reproach.

Old-fashioned; wonted; customary; as of old; as, the good old times; hence, colloquially, gay; jolly.

Used colloquially as a term of cordiality and familiarity.

Past times (especially in the phrase `in days of old')

(used especially of persons) having lived for a relatively long time or attained a specific age; especially not young; often used as a combining form to indicate an age as specified as in `a week-old baby';

Of long duration; not new;

Of an earlier time;

(used for emphasis) very familiar;

Lacking originality or spontaneity; no longer new;

Just preceding something else in time or order;

Of a very early stage in development;

Old in experience;

Used informally especially for emphasis;