Ant. Lean, slender, attenuated, emaciated, barren, poor, scant; marrowless; anatomical.

Fatal. Deadly, mortal, lethal; destructive, calamitous, baleful, ruinous, mischievous, baneful, pernicious; fateful.

Ant. Beneficial, wholesome, vitalizing, restorative, salubrious, nutritious, slight, superficial, harmless.

Fate. Destiny, destination, inevitable necessity, fatality; lot, doom, predetermined event; destruction, death; final event, ultimate destruction; fortune, end.

Ant. Will, choice, decision, independence, freedom.

Fathom, v. Sound; divine, penetrate, reach, comprehend, understand; gage, pierce, measure, probe.

Ant. Survey, glance, scan, miss, skin, graze, overlook.

Fathomless. Bottomless, profound, abysmal.

Ant. Superficial, shallow, skin-deep.

Fatigue, n. Weariness, exhaustion, lassitude; labor, hardship, toil; languor, enervation.