Wordnet 3.0
ADJECTIVE (2)
1. 
 inclined to accept rather than reject; 
- Example: "she was seldom acceptive of my suggestions"2. 
 accepting willingly; 
- Example: "acceptive of every new idea"- Example: "an acceptant type of mind"[syn: acceptive, acceptant]
The Collaborative International Dictionary of English v.0.48:
Acceptive \Ac*cept"ive\, a.
   1. Fit for acceptance.
      [1913 Webster]
   2. Ready to accept. [Obs.] --B. Jonson.
      [1913 Webster]
WordNet (r) 3.0 (2006):
acceptive
    adj 1: inclined to accept rather than reject; "she was seldom
           acceptive of my suggestions" [ant: rejective]
    2: accepting willingly; "acceptive of every new idea"; "an
       acceptant type of mind" [syn: acceptive, acceptant]