peaceful

UK: /ˈpiːsf^ʊl/ US: /ˈpisfəl/ ,(pēs′fəl)

WordReference Random House Learner's Dictionary of American English © 2025

peace•ful /ˈpisfəl/   adj. 

1. free from war or fighting:
   a peaceful decade.
2. peaceable;
   not willing or eager to fight:
   a peaceful man.
peace•ful•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2025

peace•ful  (pēs′fəl), adj. 

1. characterized by peace;
   free from war, strife, commotion, violence, or disorder:
   a peaceful reign; a peaceful demonstration.
2. of, pertaining to, or characteristic of a state or time of peace.
3. peaceable;
   not argumentative, quarrelsome, or hostile:
   a peaceful disposition.

• Middle English pesful. See peace, -ful 1250–1300

peace′ful•ly, adv. 
peace′ful•ness, n. 
Synonyms

• 1. Peaceful, placid, serene, tranquil refer to what is characterized by lack of strife or agitation.
  Peaceful today is rarely applied to persons; it refers to situations, scenes, and activities free of disturbances or, occasionally, of warfare:
  a peaceful life.
  Placid, serene, tranquil are used mainly of persons; when used of things (usually elements of nature) there is a touch of personification.
  Placid suggests an unruffled calm that verges on complacency:
  a placid disposition; a placid stream.
  Serene is a somewhat nobler word; when used of persons it suggests dignity, composure, and graciousness:
  a serene old man;
  
  when applied to nature there is a suggestion of mellowness:
  the serene landscapes of autumn.
  Tranquil implies a command of emotions, often because of strong faith, which keeps one unagitated even in the midst of excitement or danger.

Collins Concise English Dictionary © HarperCollins Publishers::

peaceful / ˈpiːsfʊl/ adjective

1. not in a state of war or disagreement
2. tranquil; calm
3. not involving violence: peaceful picketing
4. of, relating to, or in accord with a time of peace
5. inclined towards peace

ˈpeacefully adverb

ˈpeacefulness noun