The Collaborative International Dictionary
Weakliest
Weakly \Weak"ly\, a. [Compar. Weaklier; superl. Weakliest.] Not strong of constitution; infirm; feeble; as, a weakly woman; a man of a weakly constitution.
Wiktionary
weakliest
a. (en-superlative of: weakly)
WordNet
weakly
weakly
weakliest
See weakly