KEY: Infiltrate.
SYN: Instil, inoculate, permeate, saturate, soak.
ANT: Strain, draw_off, defiltrate.

• Frustration, [See FRUSTRATE_and_DISAPPOINTMENT], fleeting,
• Fugacious
• Fugitive, [See FUGACIOUS]
• Fulfil
• fulfill
• Fulminate
• Fulsome
• Fumbler, [See BUNGLER]
• Fumble, [See BUNGLE]
• Fume
• Function
• Functionary
• Fund
• Fundamental
• Funereal
• Funny
• Furbish
• Furious, {[See_Vm:]?}
• Furnish
• Further, [See ADVANCE]
• Furtive
• Fury, [See FURIOUS]
• Fuse
• Fuss
• Fustian, [See BOMBAST]