relaxation (e.g. of muscles);  becoming flaccid
 slow;  sluggish;  dull;  lax;  sloppy;  lenient
 relief;  mitigation;  alleviation;  relaxation (of restrictions, tensions, etc.);  easing;  softening
 pace;  tempo;  slow and fast;  in case of emergency
 deregulation;  removal (easing) of (official) restrictions;  relaxation of regulations
 varying the tempo or speed (of something) at will
 detente;  easing of tensions;  thaw
 remission;  improvement;  relief (of pain, symptoms, etc.)
 brake van;  guard's van;  caboose
 buffer;  shock absorber;  damper unit
 ineffective move (in go or shogi);  wasted move
 palliative medicine;  palliative therapy;  palliative treatment;  palliative care
 (when) danger threatens;  should an emergency occur
 atonic hemorrhage;  atonic haemorrhage
 composed and unhurried;  easygoing and leisurely;  in indolence
 partial relaxation;  partial easing
 controlled-release fertilizer;  slow-acting fertilizer
 alleviation of congestion (esp. traffic)
 looking cool and collect;  with an air of perfect composure
 tardigrade (any animal of phylum Tardigrada);  water bear
 litotes (figure of speech);  meiosis
 tempo indication;  tempo marking;  (a) tempo
 buffer storage;  buffer;  buffer memory
 lack of (slackness in) military discipline;  demoralization