Unlikely to tip (6)
I believe the answer is:
sturdy
(Other definitions for sturdy that I've seen before include "Strong and reliable" , "Well-built - strapping" , "Stout, brawny" , "Stalwart, stout, tough" , "Hardy, stalwart" .)
I believe the answer is:
sturdy
(Other definitions for sturdy that I've seen before include "Strong and reliable" , "Well-built - strapping" , "Stout, brawny" , "Stalwart, stout, tough" , "Hardy, stalwart" .)