As an adjective cheerier
is (cheery).
As a noun cheerer is
a person who, or a thing that cheers.
cheerier
English
Adjective
(head)
(cheery)
cheery
English
Adjective
(er)
In a good mood, happy, cheerful
Anagrams
*
cheerer
English
Noun
(
en noun)
A person who, or a thing that cheers
(Northern England) A glass of spirit with warm water