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