Wordnet 3.0
ADJECTIVE (1)
1. 
 (used of boats) inclined to heel over easily under sail; 
[syn: crank, cranky, tender, tippy]
WordNet (r) 3.0 (2006):
tippy
    adj 1: (used of boats) inclined to heel over easily under sail
           [syn: crank, cranky, tender, tippy]