resistant

Compared meaning: not affected by something harmful (adjective).

比较义项：不受某种有害事物影响、能抵御或免受其害（形容词）。

• immune

  Immune means completely protected, especially the body's natural or vaccine-acquired defense against a disease; it is all-or-nothing, not a matter of degree.

  immune 指完全不受影响，尤指身体对疾病天生或经接种获得的防御，是“要么免疫、要么不免疫”的绝对状态，没有程度之分。

  Once you've had chickenpox, you're immune to it for life.

  得过一次水痘之后，你就终生对它免疫了。

• resistant 本词

  Resistant means able to withstand or oppose something to some degree, not total protection; it is common for materials, weather or germs, not just the human body.

  resistant 指能在一定程度上抵御或对抗某事物，并非完全不受影响，常用于材料、天气或细菌等，不限于人体。

  This paint is resistant to scratches and mild chemicals.

  这种油漆能抵御划痕和温和的化学物质。

Immune and resistant both mean not affected by something harmful, but differ in degree. Immune means completely protected, especially the body's defense against disease; it is all-or-nothing. Resistant means able to withstand something to some degree, not total protection, and can describe materials or weather.

两词都可接介词 to，表示“不受……影响”，但程度不同：immune 强调完全不受影响，尤指对疾病的天然或后天免疫，是非此即彼的状态；resistant 强调部分抵御、能对抗，程度上可强可弱，且不限于疾病，也常用于材料、天气等物理属性。这里不比较 immune 引申的“不为……所动”（如 immune to criticism）等比喻义。