The Greek akōn means "unwilling" or "involuntary." It appears once in 1 Corinthians 9:17 where Paul speaks of preaching the gospel not willingly but as one compelled by a divine stewardship.
Paul's argument in 1 Corinthians 9:16–17 is striking: if he preaches voluntarily, he has a reward; but if unwillingly, he still fulfills the stewardship entrusted to him. Paul uses akōn (unwilling) not to say he resents the gospel, but to make a point about obligation and grace: even if preaching were forced upon him, the trust from God would remain. The gospel is not optional — it is a commission that compels. Woe to the preacher who stays silent.