FEEBLEMINDEDLY
Scrabble letter values: F4E1E1B3L1E1M3I1N1D2E1D2L1Y4 = 26
Definition
FEEBLEMINDEDLY is the adverb form of FEEBLEMINDED.
adjective FEEBLEMINDED: retarded in intellectual development.
Synonyms of FEEBLEMINDED: backward, half-witted, slow-witted