可观 (kě guān) is an adjective meaning 'impressive' or 'considerable', often describing a quantity, scale, or effect that stands out as notably large or significant. The character 可 means 'can' or 'may', and 观 means 'to observe' or 'to view'; together, they literally suggest something 'worthy of observation' — i.e., striking enough to catch attention due to its size, value, or impact.

This word is commonly used in formal or semi-formal contexts — such as news reports, academic writing, or business summaries — to emphasize magnitude without exaggeration. It frequently modifies nouns like 收入 (income), 数量 (quantity), 成果 (results), or 影响 (impact). While it can describe natural phenomena or animal populations, it is rarely used for subjective qualities like beauty or emotion. It carries a neutral-to-positive connotation and avoids colloquial intensity (unlike 惊人 or 震撼).