This is the 19729th most frequent Korean word.
없었다면
"If it hadn't existed" or "If it weren't there."
"없었다면" is used here to denote a conditional past scenario where the presence of 'him' would have made the situation different.
그가 없었다면 일이 이렇게 진행되지 않았을 거야.
If he hadn't been absent, the work wouldn't have progressed like this.
"없었다면" expresses a hypothetical past condition implying the absence of 'help' as a crucial factor for success.
팀의 도움이 없었다면 우리는 성공하지 못했을 것이다.
Without the team's help, we wouldn't have succeeded.
"없었다면" emphasizes a hypothetical past dependent on 'sufficient time' as necessary for a favorable outcome.