an earnest desire for some type of achievement or distinction, as power, honor, fame, or wealth, and the willingness to strive for its attainment

Too much ambition caused him to be disliked by his colleagues.

the object, state, or result desired or sought after

The crown was his ambition.

desire for work or activity; energy

I awoke feeling tired and utterly lacking in ambition.

to seek after earnestly; aspire to.

noun

apathy , contentment , diffidence , humility , indifference , laziness , satisfaction

noun

appetite , ardor , aspiration , avidity , craving , desire , drive , eagerness , earnestness , emulation , energy , enterprise , enthusiasm , fire in belly , get up and go , hankering * , hope , hunger , initiative , itch * , keenness , longing , love , lust , moxie * , passion , pretension , push , right stuff * , spirit , striving , thirst , vigor , yearning , zeal , aim , dream , end , goal , intent , mark , objective , purpose , target , wish , ambitiousness , design , meaning , object , point , view , why , folie de grandeur , initiation , intendment , intention , plan