The Collaborative International Dictionary of English v.0.48:
noncombining \noncombining\ adj. not able to combine. [WordNet 1.5]The Collaborative International Dictionary of English v.0.48:
noncombinative \noncombinative\ adj. not combinative. Opposite of combinative. [Narrower terms: noncombining] [WordNet 1.5]WordNet (r) 3.0 (2006):
noncombining adj 1: not able to combine