1.
selfish; self-indulgent; doing as one pleases without regard for others
Describes behavior or a personality that follows personal desires and whims without consideration for others. Carries a negative connotation of willfulness and selfishness.
A compound of 勝手 (selfishness; doing as one likes) and 気まま (whimsical; carefree). Together they reinforce each other to describe someone who acts entirely on personal whims without considering the impact on others. The tone is distinctly negative when describing someone's character, though it can sound envious when describing a lifestyle.