1. old-line - Adjective
2. old-line - Adjective Satellite
long-established
adhering to conservative or reactionary principles
Source: WordNetold line
an oldline senator Source: Internet
All of these innovations pioneered by the AFL, including its more exciting style of play and colorful uniforms, have essentially made today's professional football more like the AFL than like the old-line NFL. Source: Internet
Thurman's appeal came from his popularity among old-line Democrats, distrustful of Grover Cleveland's liberalism, and his known hostility to railroad monopolists. Source: Internet