Synonyms of solidify

solidify

verb

sə-ˈli-də-ˌfī 

1

as in to freeze

to become physically firm or solid

water solidifying into ice

Synonyms & Similar Words

• freeze
• harden
• stiffen
• congeal
• concrete
• indurate
• firm (up)
• set
• crystallize
• gel
• coagulate
• thicken
• encrust
• cake
• gelatinize
• rigidify
• jell
• calcify
• petrify
• ossify
• callus
• clot
• gelate
• temper
• anneal
• jelly
• case-harden

Antonyms & Near Antonyms

• soften
• liquefy
• dissolve
• melt
• thaw
• fuse
• flux
• smelt
• unfreeze
• deliquesce

2

as in to form

to take on a definite form

my ideas on this topic are just starting to solidify

Synonyms & Similar Words

• form
• crystallize
• connect
• shape (up)
• jell
• combine
• join
• coalesce
• cohere
• unite
• unify
• fuse
• couple
• associate
• link (up)
• conjugate
• conjoin

Antonyms & Near Antonyms

• break down
• decay
• decompose
• disintegrate

Example Sentences

Recent Examples of solidify

OpenAI carried out a recapitalization in October that solidified its structure as a nonprofit, called the OpenAI Foundation, with a controlling stake in its for-profit business, the OpenAI Group PBC. — Ashley Capoot, CNBC, 21 July 2026

Opponents and rights groups said the announcement Sunday represents an escalation as Ortega further solidifies his grip on Nicaragua. — Anna-Catherine Brigida, Los Angeles Times, 21 July 2026

In the meantime, Rodríguez has been solidifying her influence in Washington—hiring a lobbyist and cultivating people who might benefit from stalling a transition. — Stephania Taladrid, New Yorker, 20 July 2026

His two main opponents, Maine Secretary of State Shenna Bellows and former public health official Nirav Shah, both ended their campaigns on Sunday, further solidifying Jackson’s status as the likely nominee. — Carter Schroppe, The Washington Examiner, 19 July 2026