" self-contained "

1: as in independent;

•  Synonyms : 

•  independent,

•  detached,

•  disconnected,

•  discrete,

•  free,

•  freestanding,

•  separate,

•  single,

•  unattached,

•  unconnected,

•  individual,

•  private

•  Antonyms : 

•  attached,

•  connected,

•  joined,

•  linked,

•  adjoining

2: as in sober, staid;

•  Synonyms : 

•  sedate,

•  sober,

•  staid,

•  aloof,

•  indrawn,

•  inhibited,

•  introverted,

•  restrained,

•  backward,

•  bashful,

•  coy,

•  demure,

•  diffident,

•  modest,

•  retiring,

•  self-effacing,

•  sheepish,

•  closemouthed,

•  dumb,

•  laconic,

•  reserved,

•  reticent,

•  silent,

•  taciturn,

•  tight-lipped,

•  uncommunicative

•  Antonyms : 

•  blabby,

•  chatty,

•  communicative,

•  conversational,

•  gabby,

•  garrulous,

•  loquacious,

•  motormouthed,

•  mouthy,

•  talkative,

•  talky,

•  unreserved,

•  free-spoken,

•  outspoken,

•  vocal,

•  gossipy,

•  talebearing,

•  diffuse,

•  long-winded,

•  prolix,

•  rambling,

•  verbose,

•  windy,

•  wordy,

•  extroverted,

•  gregarious,

•  outgoing,

•  sociable

3: as in disciplined, self-controlled;

•  Synonyms : 

•  disciplined,

•  self-collected,

•  self-composed,

•  self-controlled,

•  self-poised,

•  imperturbable,

•  nerveless,

•  unflappable,

•  unself-conscious,

•  unshakable,

•  self-reliant,

•  self-sufficient,

•  self-promoting,

•  smug,

•  stuck-up,

•  vain,

•  vainglorious,

•  complacent,

•  conceited,

•  egoistic,

•  egotistic,

•  important,

•  overweening,

•  pompous,

•  prideful,

•  proud,

•  self-affected,

•  self-applauding,

•  self-centered,

•  self-complacent,

•  self-conceited,

•  self-contented,

•  self-important,

•  self-pleased,

•  self-satisfied,

•  hopeful,

•  optimistic,

•  rosy,

•  sanguine,

•  upbeat,

•  collected,

•  composed,

•  cool,

•  coolheaded,

•  poised,

•  recollected,

•  self-possessed,

•  serene,

•  tranquil,

•  unperturbed,

•  unshaken,

•  assured,

•  confident,

•  secure,

•  self-asserting,

•  self-assured,

•  self-confident

•  Antonyms : 

•  diffident,

•  insecure,

•  self-distrustful,

•  self-doubting,

•  meek,

•  timid,

•  unassertive,

•  humble,

•  modest,

•  unassuming,

•  unpretentious,

•  jittery,

•  jumpy,

•  nervous,

•  bashful,

•  demure,

•  mousy,

•  overmodest,

•  quiet,

•  reserved,

•  shy,

•  self-critical,

•  self-reproachful,

•  self-reproving