Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb fossilise

2 senses of fossilise

Sense 1
fossilize, fossilise -- (convert to a fossil; "The little animals fossilized and are now embedded in the limestone")
       => convert -- (change the nature, purpose, or function of something; "convert lead into gold"; "convert hotels into jails"; "convert slaves to laborers")

Sense 2
fossilize, fossilise -- (become mentally inflexible)
       => senesce, age, get on, mature, maturate -- (grow old or older; "She aged gracefully"; "we age every day--what a depressing thought!"; "Young men senesce")