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All answers having "Hesitant" as clue:

5 Character Answers:

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LEERY

LOATH

TIMID



6 Character Answers:

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AFRAID

TREPID

UNSURE



7 Character Answers:

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HALTING



9 Character Answers:

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FALTERING

NOTSOSURE

TENTATIVE



10 Character Answers:

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IRRESOLUTE