[mass noun]the quality or state of being firm or strong in structure (结构)坚固;紧密 the sheer strength and solidity of Romanesque architecture. 罗马式建筑的垂直强度和坚固性。 ■the quality of being substantial or reliable in character (性格)可靠;真实 he exuded an aura of reassuring solidity. 他浑身散发出一种安全可靠的感觉。