KEY: Inspire.

SYN: Animate, inspirit, inflame, imbue, impel, encourage, inhale, enliven, cheer, breathe in, infuse, exhilarate.

ANT: Depress, dispirit, discourage, deter.

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KEY: Inspissation.

SYN: Thickening, turbidity, incrassation, densification.

ANT: Helming, straining, percolation, precipitation, clarification, tenuity.

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KEY: Instability.

SYN: Mutability, wavering, fickleness, inconstancy.