意想 is primarily used as a noun meaning 'expectation', especially in fixed expressions like 意想不到 (unexpected) and 出乎意想 (beyond expectation). The verb sense 'to expect' or 'to anticipate' appears in literary Chinese but is much less common. The source gloss also lists 'to intend', but that sense is rare and may be a confusion with 意向 (intention). As an advanced word, 意想 is typically encountered in formal or written Chinese.