不ふ飽ほう和わ化か合ごう物ぶつふほうわかごうぶつMeanings1noununsaturated compoundChemistry term for a compound containing double or triple bonds between carbon atoms, capable of addition reactions.不ふ飽ほう和わ化か合ごう物ぶつは付ふ加か反はん応のうを起おこしやすい。