KEY: Flimsy.
SYN: Gauzy, poor, thin, transparent, trifling, trivial, puerile,inane, slight, superficial, weak, shallow.
ANT: Solid, sound, irrefragable, substantial, cogent.

• Fictitious
• Fidelity
• Field
• Fiendish, [See ANGELIC]
• Fierce
• Fierceness, [See FIERCE]
• Fiery
• Fight
• Figurative
• Figure
• Filch, [See CABBAGE]
• File
• Filiation, [See AFFILIATION]
• Fill
• filler
• Filter
• Filthy
• Filtration, [See FILTER]
• Fimbriated
• final
• Finality, [See FINAL]
• Find
• Fine
• Finery
• Finical