Synonyms of fossilised

Verb

1. fossilize, fossilise, convert

usage: convert to a fossil; "The little animals fossilized and are now embedded in the limestone"

2. fossilize, fossilise, senesce, age, get on, mature, maturate

usage: become mentally inflexible

Adjective

1. fossilized, fossilised, ossified, inflexible (vs. flexible)

usage: set in a rigidly conventional pattern of behavior, habits, or beliefs; "obsolete fossilized ways"; "an ossified bureaucratic system"