fastnessnoun
uk/ˈfɑːst.nəs/us/ˈfæst.nəs/fastness noun (FIXED)
[ U ] how fast (= fixed) something is:
Test clothes for colour fastness before washing.
Thesaurus: synonyms and related words
Keeping and staying the same
- consistency
- consistent
- continuum
- control
- firm
- fixed
- flat
- leave
- leave well alone idiom
- level
- level off
- remain
- seamless
- stability
- stable
- steady
- unchanged
- undisturbed
- wallow in sth
- wouldn't have it any other way idiom
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fastness noun (SAFE PLACE)
[ C ] literary a safe place, such as a fortress:
a mountain fastness
Thesaurus: synonyms and related words
Safe & enclosed spaces
- bolthole
- bunker
- bus shelter
- cover
- covert
- dry
- fallout shelter
- foxhole
- hidey-hole
- hiding place
- island
- lair
- nook
- recess
- safe house
- sanctuary
- shelter
- sheltered accommodation
- sunblind
- women's refuge
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