Earnest in feeling or desire; eager, ardent. Obsolete.

Earnest, ardent, eager. Obsolete.

Of a person, group, etc.: fervently or passionately devoted to a cause, belief, undertaking, etc… With the object towards which zeal is directed…

Vehement in feeling, as in wrath, desire, or devotion. Devoted, eager, zealous. Obsolete.

Energetic or thorough in one's actions or desires; zealous, eager, fervent. In early use frequently with for, to.

Earnest, zealous. Obsolete. rare.

A slogan adopted in the war of 1939–1945 by the United States Marines under General E. Carlson (1896–1947); hence as adj.: enthusiastic, eager…