Is “Insufficient” a Scrabble word?
Yes
INSUFFICIENT
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 Insufficient
/ɪnsəˈfɪʃənt/
adjective
1.Not sufficient.
“Insufficient time is available to reflect on the problem”
Synonyms: unsufficient