Question

ادم بد قول

Answer 1

reneger 

renege (v.)

 

Comments

The noun form was not found in the dictionady

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google کنید. دیکشنری های آنلاین!

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I found this:

http://goo.gl/3UGOGS

Answer 2

Flake!

http://www.urbandictionary.com/define.php?term=flake

Comments

he is not a man of his word

Answer 3

it means 

tardy

Example 

:

He is a tardy person

او ادم بدقولی هست ودیر به قرار میرسه

Answer 4

unfaithful

http://www.thefreedictionary.com/unfaithful

(in some occasions): faithless 

http://www.thefreedictionary.com/faithless

Comments

Promise breaker واژه ی مناسب تری نیست ???????

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See these:

http://goo.gl/3UGOGS

http://goo.gl/5YgiKp