Believing the worst of human nature and motives; having a sneering disbelief in e.g. selflessness of others; SYN. misanthropic, misanthropical.

ETYM French, from Latin impertinens, -entis; pref. im- not + pertinens. Related to Pertinent.
Characterized by a lightly pert and exuberant quality; SYN. irreverent, pert, saucy.

ETYM Latin inconsideratus. Related to In- not, and Considerate.
1. Lacking regard for the rights or feelings of others.
2. Without proper consideration or reflection; SYN. unconsidered.

ETYM Latin licentiosus: cf. French licencieux. Related to License.
Lacking moral discipline; especially sexually unrestrained.
Sexually immoral; unrestrained.

ETYM as. recceleás, rêceleás.
1. Inattentive to duty; careless; neglectful; indifferent.
2. Rashly negligent; utterly careless or heedless.

As if striking with slashing blows

1. Harsh and severe; SYN. unforgiving.
2. Lacking love and generosity

Without scruples or principles

ETYM Old Eng. wantoun, contr. from wantowen; pref. wan- wanting, hence expressing negation + towen, p. p., AS. togen, p. p. of teón to draw, to educate, bring up; hence, properly, ill bred. Related to Tug.
Lewd, lascivious or immoral.