总是 (zǒngshì) is an adverb meaning 'always' or 'invariably,' emphasizing that something happens without exception, repeatedly, or habitually. The character 总 (zǒng) means 'overall,' 'entire,' or 'in general,' while 是 (shì) means 'to be' — together, they convey the sense of 'is always the case' or 'consistently is so.' It’s commonly used to describe habitual actions, persistent states, or recurring situations in daily life, often with a tone of observation, mild frustration, or gentle emphasis.

This word typically appears before verbs or adjectives and can modify entire clauses. It frequently occurs in spoken Mandarin to express routine behavior (e.g., waking up late, forgetting keys) or unchanging facts (e.g., weather patterns, personality traits). Unlike the more formal 每次都 (měi cì dōu), 总是 carries a subtle nuance of continuity or inevitability — sometimes even implying impatience or endearment depending on context and tone.