1. superlative form of heathery; most resembling, covered with, or abounding in heather
Usage: heathery is the base adjective; heatheriest is the superlative form used when comparing three or more things

Examples

• The heatheriest slopes of the Scottish Highlands were ablaze with purple flowers in late summer.
• Of all the moorlands we visited, that one was the heatheriest.
• The heatheriest parts of the moor attracted the most bees and butterflies.