だったら

What it means

What does だったら mean? It expresses a hypothetical condition based on a preceding situation and signals a consequence or decision in that scenario, functioning as a versatile conditional discourse connector. It combines the past copula with the conditional ら to refer to imagined or assumed states and to propose a next action or response.

Main meanings

• Conditional connector indicating that a situation is being assumed and a consequence or action follows.
• Discourse marker meaning in that case or then, used to steer the conversation toward a proposal.
• Casual to neutral register, common in spoken Japanese rather than formal writing.

How to use it

Used after a clause describing a past or hypothetical state with だった, だったら attaches to that clause to present a condition and a corresponding outcome. In speech it signals planning, decision making, or negotiation, and is typically more casual than formal alternatives such as でしたら or それなら. It can be followed by a proposal, suggestion, or question about the next step.