to refract
(of physics) to change the direction of light, sound, or energy when it passes through something
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преломлять
[глагол]
inflexible
(of a rule, opinion, etc.) fixed and not easily changed

неподатливый, жесткий
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[прилагательное]
irresistible
impossible to resist or refuse, usually because of being very appealing or attractive

непреодолимый
[прилагательное]
irresponsible
neglecting one's duties or obligations, often causing harm or inconvenience to others

безответственный
[прилагательное]
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