【Deliberate】 , 【considered】 , 【advised】 , 【premeditated】 , 【designed】 ,  【studied】 are comparable when applied to a person’s acts, words, or accomplishments with the meaning thought out in advance.

【Deliberate】 implies full awareness of the nature of what one says or does and often a careful and unhurried calculation of the intended effect or of the probable consequences.

【Considered】 , unlike 【deliberate】 , which it closely resembles in meaning, is seldom applied to questionable acts or practices; it suggests careful study from all angles rather than calculation and often, therefore, connotes soundness or maturity of judgment.

【Advised】 mostly is used with deprecatory or intensifying adverbial modifiers and denotes so well thought out and 【considered】 that possible criticisms and objections have been reviewed and answers to them prepared. Its related adverb advisedly is often used to carry the implications of 【considered】  (which has no adverb).

【Premeditated】 emphasizes forethought and planning but often falls far short of 【deliberate】 in implying careful calculation and awareness of consequences. It is applied especially to things (as crimes or insults) which are morally or socially unacceptable and for which only overwhelming impulse or overmastering passion (as of fear or rage) could reasonably be offered as extenuating circumstances; in such relation, then, 【premeditated】  implies wrongdoing unmitigated by circumstances.

【Designed】 and its adverb designedly are often applied to what has the appearance of being accidental, spontaneous, or natural but which is actually the result of intention.

【Studied】 is applied chiefly to effects gained or qualities achieved as a result of painstaking effort or careful attention to detail; it connotes absence of spontaneity. It is also applied to offensive acts committed with cool deliberation and with attention to their probable effect.