Definition of "relative"

relative

/ˈɹɛl.ə.tɪv/

adjective
not comparable
1. Connected to or depending on something else; comparative.
  Quotations
  For Liverpool, their season will now be regarded as a relative disappointment after failure to add the FA Cup to the Carling Cup and not mounting a challenge to reach the Champions League places.
  2012 May 5, Phil McNulty, “Chelsea 2-1 Liverpool”, BBC Sport
2. (computing, of a URL, URI, path, or similar) Expressed in relation to another item, rather than in complete form.
3. (grammar) Depending on an antecedent; comparative.
4. (music) Having the same key but differing in being major or minor.
5. (archaic or rare) Relevant; pertinent; related.
  Quotations
  The Spirit that I haue ſeeneMay be the Diuell, and the Diuel hath powerT'aſſume a pleaſing ſhape, yea and perhapsOut of my Weakneſſe, and my Melancholly,As he is very potent with ſuch Spirits,Abuſes me to damne me. Ile haue groundsMore Relatiue then this: The play's the thing,Wherein Ile catch the Conſcience of the King.
  c. 1599–1602 (date written), William Shakespeare, “The Tragedie of Hamlet, Prince of Denmarke”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act II, scene ii], page 264, column 2
6. Capable to be changed by other beings or circumstance; conditional.
noun
plural relatives
1. Someone connected by blood, marriage, or adoption; someone in the same family.
2. (figurative) Something kindred or related to something else.
3. (linguistics) A type of adjective that inflects like a relative clause, rather than a true adjective, in certain Bantu languages.