"not spontaneous or voluntary, strained, unnatural," 1570s, past-participle adjective from force (v.). Meaning "effected by an unusual application of force" is from 1590s. Related: Forcedly. The flier's forced landing attested by 1917.
forced-air heating
forced convection in plasma generators
furnaces of the forced-convection type
promised to abolish forced labor
a forced landing
forced heartiness
forbid
forbidding
forbore
force
force majeure
forced
force-feed
forceful
forcemeat
forceps
forcible