Search Result for "top-heavy": 
Wordnet 3.0

ADJECTIVE (1)

1. unstable by being overloaded at the top;


The Collaborative International Dictionary of English v.0.48:

Top-heavy \Top"-heav`y\, a. Having the top or upper part too heavy for the lower part. --Sir H. Wotton. [1913 Webster]
WordNet (r) 3.0 (2006):

top-heavy adj 1: unstable by being overloaded at the top