Definition of "companionable" [com•pan•ion•a•ble]

• Having the qualities of a good companion; friendly. See Synonyms at social. (adjective)
• Suggestive of companionship: reading together in companionable silence. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "They ate together in companionable silence until it was almost time to go."
• "They walked along in companionable silence for a while when suddenly the Doctor blurted out, “You want a ring, Rose?”"
• "We sat in what I suppose was called companionable silence."