Is “Muggier” a Scrabble word?
Yes
MUGGIER
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Muggier
adjective
1.(Of the weather, air, etc) humid, or hot and humid.
2.Wet or mouldy
“muggy straw”
Synonyms: close, oppressive, sticky, sultry