1.incompatible a．不能和諧共存的（not able to exist in harmony or agreement）

詞根記憶：in（不）+compatible(和諧的)--不能和諧共存的

例：The cult of female domesticity was incompatible with women's participation in social activism.

派生詞：incompatibly( ad.矛盾地；不相容地)

2.inconclusive a．非決定性的，無結果的（leading to no conclusion or definite result）

詞根記憶：in（不）+con(加強)+clus(關閉，停止)+iVe(…的)--不能強行停止的--非決定性的，無結果的

例：An inconclusive polygraph test result is sometimes unfairly held against the examinee.

派生詞：inconclusively( ad.非決定性地)

同根詞：exclusive(a．獨有的；排外的)

3.inconsistent a．不一致的，矛盾的(not compatible)

詞根記憶：in（不）+consistent(一致的)--不一致的，矛盾的

例：Two hypotheses are inconsistent with each other.

派生詞：inconsistency(n.不一致，矛盾)

4.incorporate v.合并，并入(to combine)

詞根記憶：in（進入）+corpor(體)+ate--成為一體--合并

例：In the 1960's the Mexican American communit3t began to incorporate the customs of other ethnic groups.

派生詞：incorporation(n.合并)

5.increment n．增量;增加(increase)

詞根記憶：in（進入）+cre(增加)+ment--增加

例：The athlete added weights to the barbells in five-pound increments.

同根詞：accretion(n.自然增大)

6.incubate v.孵化（to sit on(eggs)so as to hatch by the warmth of the body); 醞釀

詞根記憶：in（里面）+cub(睡)+ate--睡在里面--孵化

例：In contrast to some fish, whose eggs require months to incubate, the Rio Grande silvery minnow produces eggs that hatch in about 24 hours, yielding larvae that can swim in just three to four days.

派生詞：incubation(n．孵化；潛伏期)

同根詞：cubicle(n.小臥室)

7.incur v.招致（to beget);遭受，遭遇（to become subject to）

詞根記憶：in（進入）+cur(跑：發生)--使發生--招致；遭受

例：Companies that seek legal protection from import competition may incur legal costs.

8.incursron n.侵犯，入侵(raid)

例：In the 1860's the Byzantine Empire began to recover from Arab incursions.

9.indenture n.契約(a contract binding one person to work for another for a given period of time);v.以契約約束(to bind by or as if by indenture)

詞根記憶：in+dent(牙齒)+ure(狀態)--原指古代師徒間分割成鋸齒狀的契約--以契約約束

例：indentured servants契約工