"gladder" in the adjective sense
1. glad
showing or causing joy and pleasure especially made happy
"glad you are here"
"glad that they succeeded"
"gave a glad shout"
"a glad smile"
"heard the glad news"
"a glad occasion"
2. glad, happy
eagerly disposed to act or to be of service
"glad to help"
3. glad
feeling happy appreciation
"glad of the fire's warmth"
4. beaming, glad
cheerful and bright
"a beaming smile"
"a glad May morning"
Source: WordNet® (An amazing lexical database of English)
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