AMBITIOUS
ambitious
(adjective) having a strong desire for success or achievement
ambitious, challenging
(adjective) requiring full use of your abilities or resources; “ambitious schedule”; “performed the most challenging task without a mistake”
Source: WordNet® 3.1
Etymology
Adjective
ambitious (comparative ambitiouser or more ambitious, superlative ambitiousest or most ambitious)
(of a person or their character) Having or showing ambition; wanting a lot of power, honor, respect, superiority, or other distinction.
(followed by "of" or the infinitive) Very desirous
Resulting from, characterized by, or indicating, ambition
Synonyms: showy, aspiring
Hard to achieve.
Antonyms
• nonambitious
• unambitious
Source: Wiktionary
Am*bi"tious, a. Etym: [L. ambitiosus: cf. F. ambitieux. See
Ambition.]
1. Possessing, or controlled by, ambition; greatly or inordinately
desirous of power, honor, office, superiority, or distinction.
Yet Brutus says he was ambitious, And Brutus is an honorable man.
Shak.
2. Strongly desirous; -- followed by of or the infinitive; as,
ambitious to be or to do something.
I was not ambitious of seeing this ceremony. Evelyn.
Studious of song, and yet ambitious not to sing in vain. Cowper.
3. Springing from, characterized by, or indicating, ambition; showy;
aspiring; as, an ambitious style.
A giant statue . . . Pushed by a wild and artless race, From off
wide, ambitious base. Collins.
Source: Webster’s Unabridged Dictionary 1913 Edition