force, n. [strength], [energy], [power], [vigor], [might], potency, cogency, [validity], [efficacy], efficiency; [compulsion], [coercion], [violence], [constraint], tension, [impetus]; armament, troops, [army], [legion], battalion, phalanx. Associated words: dynamics, dyne, statics, perforce, dynamic, mechanics, brunt, kinit.
forced, a. [involuntary], [compulsory], [strained], [far-fetched]. Antonyms: [spontaneous], [voluntary], [discretional], [optional], elective.
forcible, a. [energetic], [potent], [effective], [compulsory], coercive, drastic, [vigorous].
forcing, n. [compelling], [compulsion], [coercion], [extortion], necessitation, [constraint]; [rape], [ravishment]. Antonyms: [discretion], [option], election, [free-will].
forearm, n. antibrachium.
forebode, v. [portend], [presage], [foreshadow], augur [betoken], [foretell].
foreboding, n. premonition, presentiment, [augury], prescience, [foreknowledge].
forecast, n. predetermination, premeditation, [forethought].
foredoom, v. predestine, preordain.
forefather, n. [ancestor], progenitor, [forbear]; pl. [ancestry], lineage, progenitors, [forbears].