falter
start to lose strength or momentum: her smile faltered and then faded.
fanatic
a person filled with excessive and single-minded zeal, especially for an extreme religious or political cause: religious fanatics.
fantastic
imaginative or fanciful; remote from reality: fantastic hybrid creatures | novels are capable of mixing fantastic and realistic elements.
fastidious
very attentive to and concerned about accuracy and detail: he chooses his words with fastidious care.
facetious
treating serious issues with deliberately inappropriate humor; flippant: a facetious remark.
fathom
[usually with negative] understand (a difficult problem or an enigmatic person) after much thought: [with clause] : he couldn’t fathom why she was being so anxious | he could scarcely fathom the idea that people actually lived in Las Vegas.
fawn
(of a person) give a servile display of exaggerated flattery or affection, typically in order to gain favor or advantage: congressmen fawn over the President.
• (of an animal, especially a dog) show slavish devotion, especially by crawling and rubbing against someone: the dogs started fawning on me.
faze
disturb or disconcert (someone): she was not fazed by his show of anger.
fearsome
frightening, especially in appearance: the cat mewed, displaying a fearsome set of teeth.
fearful
feeling afraid; showing fear or anxiety
feast
feat
an achievement that requires great courage, skill, or strength: the new printing presses were considerable feats of engineering.
feeble
lacking physical strength, especially as a result of age or illness: my legs are very feeble after the flu.
feign
pretend to be affected by (a feeling, state, or injury): she feigned nervousness.
muster
assemble (troops), especially for inspection or in preparation for battle: 17,000 men had been mustered on Haldon Hill.
ferment
发酵
ferocious
savagely fierce, cruel, or violent: the wolverine is nature’s most ferocious and violent animal.
fertilize
cause (an egg, female animal, or plant) to develop a new individual by introducing male reproductive material.
festive
2. cheerful and jovially celebratory
jovial
cheerful and friendly
celebratory
feeling or expressing happiness and pride
fetching
attrative
ficititious
not real or true, being imaginary or having been fabricated: she pleaded guilty to stealing thousands in taxpayer dollars by having a fictitious employee on her payroll.
feud
a prolonged and bitter quarrel or dispute: one of the most volatile feuds that currently rock the scientific community.