| bottomless(adjective, down, deep, far) |
| brine(noun, water, solution, sea, police) |
| briny(noun, sea) |
| broad(adjective, hard, down, thick, huge) |
| canny(adjective, smooth, sharp, bright, intelligent) |
| chasm(noun, high, hole, hollow, gap) |
| crafty(adjective, sharp, intelligent, cunning, clever) |
| drink(noun, informal, sea) |
| exhaustive(adjective, great, extreme, intimate, secret) |
| far(adjective, adverb, obscure, down, humble) |
| fervent(adjective, clear, strong, tough, severe) |
| foxy(adjective, sharp, intelligent, shrewd, clever) |
| grave(adjective, sound, tough, severe, intense) |
| gulf(noun, high, hole, hollow, gap) |
| hard(adjective, strong, tough, severe, intense) |
| hearty(adjective, person, great, warm, energetic) |
| high seas(noun, expression, idiom, water, sea) |
| immersed(adjective, activity, full, down, fixed) |
| inmost(adjective, down, intimate, secret, private) |
| innermost(adjective, intimate, secret, private, personal) |