1. In an unaccountable manner
   "in the book, a tycoon unaccountably becomes the hero's friend"

See also: unaccountable

• syncope
• syncretic
• syncretical
• syncretise
• syncretism
• syncretist
• syncretistic
• syncretistical
• syncretize
• syncytium
• syndactylism
• syndactyly
• syndesmosis
• syndetic
• syndic
• syndical
• syndicalism
• syndicalist
• syndicate
• syndication
• syndicator
• syndrome
• syne
• synecdoche
• synecdochic