(of physics) to change the direction of light, sound, or energy when it passes through something
refrattare, deviare
hard or impossible to control because of stubbornness
refrattario, testardo
to resist or hold back from doing or saying something
astenersi, contenere
(of a rule, opinion, etc.) fixed and not easily changed
inflessibile, rigido
impossible to resist or refuse, usually because of being very appealing or attractive
irresistibile
neglecting one's duties or obligations, often causing harm or inconvenience to others
irresponsabile
to supply crops, land, etc. with water, typically by artificial means
irrigare
(of a quality or skill) gained from the moment that one was born
innato, naturale
to soak something in liquid in order to get the flavor of it
infondere, immersare
the process of soaking herbs or tea in a liquid, usually boiled water
infusione, tisana