Fer·mi 
(fĕrmē), Enrico 1901-1954.
(fĕrmē), Enrico 1901-1954. Italian-born American physicist who won a 1938 Nobel Prize for his work on radioactivity induced by neutron bombardment of various elements. He also led the team that produced the first controlled nuclear chain reaction (1942).
Enrico Fermi- unrelenting
- unrelentingly
- unreliability
- unreliable
- unreliableness
- unreliably
- unrelieved
- unrelievedly
- unreligious
- unremarkable
- unremarkably
- unremarked
- unremitting
- unremittingly
- unremittingness
- unrepentant
- unrepentantly
- unreproved
- unrequited
- unrequitedly
- unreserve
- unreserved
- unreservedly
- unreservedness
- unresponsive