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Webster 1913 Edition
Gustable
1. 
Capable of being tasted; tastable. 
This position informs us of a vulgar error, terming the gall
bitter; whereas there is nothing
bitter; whereas there is nothing
gustable 
sweeter. Harvey.
2. 
Pleasant to the taste; toothsome; savory. 
A 
 gustable 
thing, seen or smelt, excites the appetite, and affects the glands and parts of the mouth. Derham.
Gust′a-ble
,Noun.
 Anything that can be tasted. 
[Obs.] 
Webster 1828 Edition
Gustable
GUST'ABLE
,Adj.
  1.
  Pleasant to the taste.  [Little used.]Definition 2025
gustable
gustable
English
Adjective
gustable (comparative more gustable, superlative most gustable)
-  Having a taste; capable of being tasted.
-  Harvey
- This position informs us of a vulgar error, terming the gall bitter; whereas there is nothing gustable sweeter.
 
 
 -  Harvey
 -  Pleasant to the taste; toothsome; savory.
-  Derham
- A gustable thing, seen or smelt, excites the appetite, and affects the glands and parts of the mouth.
 
 
 -  Derham