Almost always paired with 屹立 (yìlì — stand firmly) or 耸立 (sǒnglì — rise up): 巍然屹立, 巍然耸立. Used for mountains, monuments, walls, statues, and metaphorically for figures of unshakable moral standing.
memory
巍 has 山 (mountain) on the left — picturing the high, towering quality. 然 is a literary suffix forming adjectives ('-ly / -ous'), as in 突然 (suddenly), 显然 (obviously).
