Their voices amplified by PA systems, the protests' leaders exhort their audiences with rigidly ideological slogans.
One of the admirable things about Secretary of State John Kerry being his rigidly logical mind.
High-minded pursuits dovetail with rigidly disciplining your body.
early 15c., from Latin rigidus "hard, stiff, rough, severe," from rigere "be stiff," from PIE *reig- "stretch (tight), bind tightly, make fast" (cf. Old Irish riag "torture," Middle High German ric "band, string"). Related: Rigidly.