Search Result for "imperfective": 
Wordnet 3.0

NOUN (1)

1. aspect without regard to the beginning or completion of the action of the verb;
[syn: imperfective, imperfective aspect]



WordNet (r) 3.0 (2006):

imperfective
    n 1: aspect without regard to the beginning or completion of the
         action of the verb [syn: imperfective, imperfective
         aspect]