afebrile
adjective
afe·brile (ˌ)ā-ˈfe-ˌbrī(-ə)l 
also
-ˈfē- : not marked by or having a fever
Example Sentences
Recent Examples on the Web He's been afebrile, without a fever, for more than one day. 
CBS News, 11 Oct. 2020
CBS News, 11 Oct. 2020 Word History
Etymology
borrowed from New Latin afebrīlis, from a- a- entry 2 + Medieval Latin febrīlis febrile
First Known Use
1842, in the meaning defined above
Medical Definition
afebrile
adjective
afe·brile
(ˈ)ā-ˈfeb-ˌrīl also -ˈfēb-
: free from fever : not marked by fever