based on guessing or on opinions that have been formed without knowing all the facts 推测的；猜测的；推断的 The report is highly speculative and should be ignored. 这个报道推测的成分很大，应该不予理会。
showing that you are trying to guess something 揣摩的；忖度的；试探的 (of business activity 商业活动 done in the hope of making a profit but involving the risk of losing money 投机性的；风险性的 speculative investment 有风险的投资
Word Originlate Middle English: from Old French speculatif, -ive or late Latin speculativus, from the verb speculari, from specula ‘watchtower’, from specere ‘to look’.