Is “Tackiest” a Scrabble word?
Yes
TACKIEST
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 Tackiest
adjective
1.Of a substance, slightly sticky.
“This paint isn't dry yet; it's still a bit tacky.”
adjective
1.Of low quality.
“That market stall sells all sorts of tacky ornaments.”
2.In poor taste.
“That was a tacky thing to say.”
3.Gaudy or flashy.
Synonyms: dowdy, flashy, garish, showy