The Collaborative International Dictionary of English v.0.48:

Self-seeking \Self"-seek`ing\, a.
   Seeking one's own interest or happiness; selfish.
   --Arbuthnot.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Self-seeking \Self"-seek`ing\, n.
   The act or habit of seeking one's own interest or happiness;
   selfishness.
   [1913 Webster]

WordNet (r) 3.0 (2006):

self-seeking
    adj 1: interested only in yourself [syn: self-serving, self-
           seeking]
    n 1: taking advantage of opportunities without regard for the
         consequences for others [syn: opportunism, self-
         interest, self-seeking, expedience]

Moby Thesaurus II by Grady Ward, 1.0:

70 Moby Thesaurus words for "self-seeking":
   acquisitive, acquisitiveness, ambitious for self, autism, autistic,
   careerism, careerist, ego trip, egoistic, egomaniacal, egotism,
   egotistic, egotistical, grasping, graspingness, greed, greedy,
   individualism, individualistic, interest, narcissism, narcissistic,
   personal aims, personal ambition, personal desires, personalism,
   personalistic, possessive, possessiveness, privatism, privatistic,
   remote, remoteness, self-absorbed, self-absorption,
   self-admiration, self-admiring, self-advancement, self-advancing,
   self-besot, self-centered, self-centeredness, self-concerned,
   self-consideration, self-considerative, self-contained,
   self-containment, self-devoted, self-devotion, self-esteem,
   self-esteeming, self-indulgence, self-indulgent, self-interest,
   self-interested, self-interestedness, self-jealous, self-jealousy,
   self-occupation, self-occupied, self-pleasing, self-regard,
   self-serving, self-solicitude, self-sufficiency, self-sufficient,
   selfhood, selfish, selfishness, selfism