Adverb
In a keen manner.
Source: Webster's dictionaryHis lack of education is more than compensated for by his keenly developed moral bankruptcy. Woody Allen
God created man and, finding him not sufficiently alone, gave him a companion to make him feel his solitude more keenly. Paul Valéry
If I became a philosopher, if I have so keenly sought this fame for which I'm still waiting, it's all been to seduce women basically. Jean-Paul Sartre
I've found, in my own writing, that a little hatred, keenly directed, is a useful thing. Alice Walker
I am keenly aware that I benefit from a wonderful tradition in the UK of designing and making. Jonathan Ive
When the laborer is praised, his cutlass begins to cut more keenly. Nigerian Proverb