87 entries under expression topic. ×

0
take to heart
0
took the pledge(idiom, temperate, abstemious, clear-headed)
0
tough inflexible(strong, hard, tough, sturdy)
0
usher in(verb, phrasal verb)
0
very bad
0
very important
0
with both feet on the ground(idiom, rational, straightforward, down-to-earth)
10 years ago|45k views|share |citing 
APASmart Define. (2016). serious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/serious/thesaurus/synonyms
ChicagoSmart Define. 2016. "serious thesaurus" https://smartdefine.org/serious/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, serious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/serious/thesaurus/synonyms>.
MLASmart Define. "serious thesaurus" 24 February 2016. Web. 23 September 2026. <https://smartdefine.org/serious/thesaurus/synonyms>