1 unhappy because you are not with other people 孤寂的;寂寞的:
to feel sad and lonely感到悲伤和寂寞
2 (used about a situation or a period of time) sad and spent alone (指情况或一段时间)悲哀寂寞的,孤寂的
3 (only before a noun 只用于名词前) far from other people and places where people live 偏僻的;人迹罕至的
☞ Look at the note at alone. 参看alone的注释。 ➔lonelinessnoun [U]
☞Compare solitude and isolation. 与solitude及isolation比较。