Another word for thick would be big, and an antonym for this word would be thin.
fat
Crude oi
thick skulled sloth.
Truncated
Another word for thick would be big, and an antonym for this word would be thin.
fat
slab
Thick Skin
Halyard!
Crude oi
short manner
One word that usually means "not short" is tall. The other major antonym is long.
Hearty, thick, hot, nutritious
not short
A nose that is short and thick but turned up at the tip is called a pug nose. Another name for an upturned nose is retrousse nose.
A short novel or a long short story.