1.
generally, usually, mostly, for the most part
Indicates that something is true in most cases or that one does something as a general habit. Similar to だいたい but slightly more colloquial.
2.
moderation, reasonable limit; enough already
Expresses that something has reached a reasonable limit or that one should show restraint. Often used in the phrase 大概にしろ to tell someone to stop going too far.
大概 has two main uses: as an adverb meaning "generally" and in the expression 大概にする meaning "to show moderation."
SENSE 1 — GENERALLY:
Used like だいたい to describe habitual actions or general truths.
Similar words
- だいたい: the most common and neutral ("roughly, generally")
- 大概: slightly more colloquial, often used for habits
- 大抵: similar to 大概, used for habitual actions
SENSE 2 — MODERATION:
The key expression is 大概にする/しろ, meaning "to keep things within limits" or as a command, "that's enough."