faithfulness to a person, cause, or belief, demonstrated by continuing loyalty and support 忠诚,忠实,忠贞 he sought only the strictest fidelity to justice. 他寻求的只是绝对公正。 ■sexual faithfulness to a spouse or partner (对配偶或搭档的)忠贞 ■the degree of exactness with which something is copied or reproduced 保真度,逼真度 the 1949 recording provides reasonable fidelity. 1949年的录音保真度还不错。
语源
late Middle English: from Old French fidelite or Latin fidelitas, from fidelis 'faithful', from fides 'faith'. Compare with fealty