fastness🔊

The quality or state of being fast.

The quality or state of being strongly attached; firmness, secureness, tenacity.

The ability of a dye to withstand fading.

The quality or state of moving quickly; quickness, rapidity, swiftness.

The quality or state of having an extravagant lifestyle or immoral habits.

(archaic) Of a fortress or other place: the quality or state of being secure from access or attack; safety, security.

(obsolete) The quality or state of being firm, hard, or solid; firmness, hardness, solidity.

Something that is fast, or that causes someone or something to be fast (''in various senses'').

(also figuratively) A fortified or secure place; a fortress, a stronghold.

(obsolete except British, regional) Something used to fasten or tie; a fastener or fastening.