Which word means "certain" or "inevitable"?

The word "ineluctable" is defined as something that is unavoidable or certain to happen. It conveys a sense of inevitability, indicating that no matter the circumstances, the outcome cannot be changed. This aligns perfectly with the idea of something being certain or inevitable. In literature and discussions, people often use "ineluctable" to emphasize the inescapable nature of fate or certain events.

The other options do not convey the meaning of certainty or inevitability. For instance, "inimical" refers to something that is hostile or unfriendly, which is completely unrelated to the idea of being certain. "Limn" means to depict or describe something, often in a detailed way, which also does not relate to the meaning sought in the question. "Limpid" means clear or transparent, typically describing clarity in terms of water or communication rather than certainty in happening. Thus, "ineluctable" stands out as the word that accurately captures the intended meaning of being certain or inevitable.