1. (adjective) (of a body of water) free from disturbance by heavy waves

• quiet
• smooth
• still
• tranquil
• unruffled

2. (adjective) not easily irritated

• equable
• even-tempered
• good-tempered

1. (adjective) (of a body of water) free from disturbance by heavy waves

• calm

2. (adjective) not easily irritated

• good-natured

1. (adjective) (of a body of water) free from disturbance by heavy waves

• placidity
• placidness
• quiet
• tranquility
• tranquillity
• quietness
• quietness
• quietness
• quietude
• quietude
• quietude
• tranquility
• tranquility
• tranquility
• tranquillity
• tranquillity
• tranquillity
• smoothness
• stillness
• windlessness

2. (adjective) not easily irritated

• good-humoredness
• good-humouredness
• good-naturedness
• good-temperedness
• placidity
• quiet
• repose
• serenity
• tranquility
• tranquillity
• placidity
• placidness