[con.gru.ous] adj [L congruus, fr. congruere to come together, agree] (1599) 1 a: being in agreement, harmony, or correspondence b: conforming to the circumstances or requirements of a situation: appropriate "a ~ room to work in --G. B. Shaw"
2: marked or enhanced by harmonious agreement among constituent elements "a ~ theme" -- con.gru.ous.ly adv -- con.gru.ous.ness n