看来 (kàn lái) means 'it seems that / apparently' — it expresses a conclusion based on what you see or observe. 好像 (hǎo xiàng) is more general, used for subjective impressions or hypotheticals (好像要下雨了). 显得 (xiǎn de) focuses on how something 'appears' in a specific way (显得很高兴), while 看似 (kàn sì) is a formal term often implying the appearance is deceptive.