n.
1.
Ardor, vehemence, eagerness, earnestness, fervor, zest.
2.
Sharpness, acuteness.
3.
Severity, rigor, sternness.
4.
Causticity, acrimony, asperity, bitterness, pungency.
5.
Poignancy, acuteness, bitterness.
6.
Shrewdness, sagacity, astuteness.
n.
1.
Ardor, vehemence, eagerness, earnestness, fervor, zest.
2.
Sharpness, acuteness.
3.
Severity, rigor, sternness.
4.
Causticity, acrimony, asperity, bitterness, pungency.
5.
Poignancy, acuteness, bitterness.
6.
Shrewdness, sagacity, astuteness.
Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012