Ironic: containing irony; It all seems ironic now, standing in the drizzle rain waiting for the bus.

Omen: an event in regards of good or bad; In some regions, they all killed by the local people who believe they have an ill omen.

Profanity; a curse word; After losing the game, he was muttering a string of profanities.

Lewd: characterized by; What lewd behavior!