投とう機き的てきとうきてきMeanings1na-adjectivespeculativeDescribes actions, investments, or attitudes based on speculation rather than certainty. Often used in financial contexts.彼かれの投とう資しは投とう機き的てきだ。His investments are speculative.投とう機き的てきな行こう動どうはリスクが高たかい。Speculative behavior carries high risk.