re-think
The past tense of rethink is rethought.
you should rethink your hypothasis
reevaluate, rethink, reanalyze, review.
It is not hyphenated.
Rethink
Motorcycle is not hyphenated
No it's not hyphenated.
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
Rethink - record label - was created in 1997.
Rethink Afghanistan was created on 2009-10-02.
Rethink Mental Illness was created in 1972.
Yes it should be hyphenated.