1. mackly - Adjective
2. mackly - Adverb
(UK dialectal) Evenly; aptly; easily.
(UK dialectal, Scotland) Moderately.
mackly (comparative more mackly, superlative most mackly)
(UK dialectal) Seemly; comely; good-looking.
At the show-Sri Lanka’s first exclusive sleepwear showcase- 35 young children bounded down the runway in their Mackly pyjamas. Source: Internet