1. most resembling or containing peat; having the strongest characteristics of peat (such as earthy smell, dark color, or organic composition)
Usage: superlative form of peaty

Examples

• The peatiest soil was found in the lowest part of the bog.
• This whisky has the peatiest flavor of all the single malts we tasted.
• The peatiest areas of the marsh were too soft to walk on.
• Among all the samples, this one had the peatiest aroma.
• The peatiest section of the garden retained the most moisture.
• This is the peatiest scotch in their entire collection.