Virtual. Potential, efficacious, energizing, implicit, indirect, practical, essential, equivalent.
Ant. Stated, direct, definite, expressed, explicit, emphatic, categorical.
Virtue. Energy, strength, potency, efficacy; value, merit, excellence; worth, meritoriousness; integrity, purity, virginity, chastity; goodness, morality, uprightness, rectitude, probity, righteousness; force, power, capacity; honor, worthiness, honesty, truth, duty, virtuousness, faithfulness, justice.
Ant. Inability, weakness, impotency, inefficacy; badness, corruption, impurity, unchastity, depravity, wickedness, laxity, dishonesty.
Virtuous. Excellent, upright, righteous, pure, chaste; good, honest, exemplary, blameless, worthy, modest.
Ant. Wicked, bad, wrong, unrighteous, impure, dishonest, worthless, immodest, blameworthy.
Virulence. Malignancy, virus, contagion, poison, venom; bitterness, malevolence, acrimony.
Ant. Mildness, blandness, salubriousness, abatement, assuagement; potency; benevolence, virtue.
Visible. Perceptible, noticeable, apparent, open, conspicuous, obvious, manifest, evident, clear, plain, observable, palpable, discernible.
Ant. Invisible, unseen, imperceptible, concealed, eclipsed, indistinguishable, impalpable, microscopic, indiscernible.