Of or relating to the countryside, fields, or rural areas; having rustic or wild characteristics.
From Latin 'agrestis' plus the suffix '-ial,' an alternative form of the agrestal adjective. This variant appears more in older texts and specialized contexts.
This is essentially a fancier, more archaic version of 'agrestal'—if you see it in old agricultural texts or romantic poetry, it's usually trying to sound more dignified about describing wild countryside.
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