bound to, be

be bound to (be or do something)

To be apt or likely to do something. We all thought that Doug was bound to be an artist, so we were very surprised when he became a trader on Wall Street. A: "Do you think it will rain today?" B: "It hasn't rained for weeks, so it's bound to."
See also: bound
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

bound to, be

Be certain or destined to; also, be determined or resolved to. For example, We are bound to hear from them soon, or No matter what they say, she is bound to run for mayor. This usage is derived from the older sense of bound as "obliged." [Mid-1500s]
See also: bound
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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