| A | B |
| intrinsic | part of the essential nature of something; inherent |
| introspective | tending to think about oneself; examining one's feelings |
| inundate | to flood; to cover completely with water; to overwhelm as if a flood |
| irrefutable | cannot be disproved; undeniable |
| jargon | the specialized vocabulary of members of a group |
| judicious | wise; careful; showing sound judgment, prudent |
| labyrinth | a maze; a complicated, perplexing arrangement or course of affairs |
| lackluster | lacking brightness; dull; lacking liveliness, vitality, or enthusiasm |
| laconic | brief or terse in speech; using few words |
| lampoon | strong, satirical writing, usually attacking or ridiculing someone |
| latent | present but not visible or apparent; potential; hidden; concealed |
| lethargic | drowsy; sluggish; dull; lazy; indifferent |