Is “Weakest” a Scrabble word?
Yes
WEAKEST
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 Weakest
adjective
1.Lacking in force (usually strength) or ability.
“The child was too weak to move the boulder.”
2.Unable to sustain a great weight, pressure, or strain.
“a weak timber; a weak rope”
3.Unable to withstand temptation, urgency, persuasion, etc.; easily impressed, moved, or overcome; accessible; vulnerable.
“weak resolutions; weak virtue”
Synonyms: assailable, feeble, frail, powerless, vincible, vulnerable