Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
speculativeness is a noun meaning "financial risk". It carries 2 recorded senses.
financial risk
“he rejected stocks that didn't pay dividends because of their speculativeness”
the quality of being a conclusion or opinion based on supposition and conjecture rather than on fact or investigation
“her work is highly contentious because of its speculativeness and lack of supporting evidence”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for speculativeness come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.