All rigorous antonyms

adj rigorous

• inaccurate — not accurate; incorrect or untrue.
• inexact — not exact; not strictly precise or accurate.
• questionable — of doubtful propriety, honesty, morality, respectability, etc.: questionable activities; in questionable taste.
• negligent — guilty of or characterized by neglect, as of duty: negligent officials.
• tolerant — inclined or disposed to tolerate; showing tolerance; forbearing: tolerant of errors.
• kind — of a good or benevolent nature or disposition, as a person: a kind and loving person.
• incorrect — not correct as to fact; inaccurate; wrong: an incorrect statement.
• unsuitable — not suitable; inappropriate; unfitting; unbecoming.
• lenient — agreeably tolerant; permissive; indulgent: He tended to be lenient toward the children. More lenient laws encouraged greater freedom of expression.
• lax — not strict or severe; careless or negligent: lax morals; a lax attitude toward discipline.
• false — not true or correct; erroneous: a false statement.
• imprecise — not precise; not exact; vague or ill-defined.
• careless — If you are careless, you do not pay enough attention to what you are doing, and so you make mistakes, or cause harm or damage.
• flexible — capable of being bent, usually without breaking; easily bent: a flexible ruler.
• easy — not hard or difficult; requiring no great labor or effort: a book that is easy to read; an easy victory.
• gentle — kindly; amiable: a gentle manner.
• soft — yielding readily to touch or pressure; easily penetrated, divided, or changed in shape; not hard or stiff: a soft pillow.
• wrong — not in accordance with what is morally right or good: a wrong deed.
• improper — not proper; not strictly belonging, applicable, correct, etc.; erroneous: He drew improper conclusions from the scant evidence.
• yielding — inclined to give in; submissive; compliant: a timid, yielding man.
• easy-going — calm and unworried; relaxed and rather casual: an easygoing person.
• loose — free or released from fastening or attachment: a loose end.
• mild — amiably gentle or temperate in feeling or behavior toward others.