【Stocky】 , 【thickset】 ,  【thick】 ,  【chunky】 ,  【stubby】 ,  【squat】 ,  【dumpy】  are comparable when they apply to build of the human body and mean being relatively compact in form.

【Stocky】 implies a short and wide or 【thick】 build and is likely to be complimentary in suggesting compact sturdiness.

【Thickset】 may describe a 【thick】 , solid, burly body.

【Thick】 may be used for bodily parts more often than for body build.

【Chunky】 may indicate a body type ample but robust and solid.

【Stubby】 , less apt than others in this set to describe human body types, indicates noteworthy lack of height or length and corresponding shortness.

【Squat】  and  【dumpy】  are usually uncomplimentary.

【Squat】 may indicate unshapely lack of height as though suggesting a person squatting.

【Dumpy】 may suggest short, lumpish gracelessness of body.