" rigidly "

1: without any relaxation of standards or precision;

  * e.g., " ... the judge stuck rigidly to the letter of the law "

•  Synonyms : 

•  exactly,

•  precisely,

•  rigorously,

•  strictly

•  Antonyms : 

•  imprecisely,

•  inexactly,

•  loosely

1: not allowing for any exceptions or loosening of standards;

  * e.g., " ... rigid enforcement of drug laws "

•  Synonyms : 

•  brassbound,

•  cast-iron,

•  exacting,

•  hard-line,

•  inflexible,

•  rigorous,

•  strict,

•  stringent,

•  uncompromising

•  Antonyms : 

•  flexible,

•  lax,

•  loose,

•  relaxed,

•  slack

2: given to exacting standards of discipline and self-restraint;

  * e.g., " ... a rigid man who cannot seem to relax "

•  Synonyms : 

•  austere,

•  authoritarian,

•  flinty,

•  hard,

•  harsh,

•  heavy-handed,

•  ramrod,

•  rigorous,

•  severe,

•  stern,

•  strict,

•  tough

•  Antonyms : 

•  clement,

•  forbearing,

•  gentle,

•  indulgent,

•  lax,

•  lenient,

•  tolerant

3: having a consistency that does not easily yield to pressure;

  * e.g., " ... rigid steel bars that should be able to hold the weight "

•  Synonyms : 

•  compact,

•  firm,

•  hard,

•  solid,

•  stiff,

•  unyielding

•  Antonyms : 

•  flabby,

•  soft,

•  spongy,

•  squashy,

•  squishy