Misplace, mislay both mean to put in the wrong place and both in their basic use imply that the thing in question is as unavailable as if lost though firmly believed to be still in one's possession.
Misleading vs Deceptive vs Delusive vs Delusory
Misleading, deceptive, delusive, delusory all mean having an appearance or character that leads one astray or into error.
Misfortune vs Mischance vs Adversity vs Mishap
Misfortune, mischance, adversity, mishap are comparable when they denote bad luck or adverse fortune or an instance of this.
Miserable vs Wretched
Miserable, wretched both describe something (as a person's state of health or of mind, a state of affairs, a human being with reference to his condition or character, or a thing compared with others of its kind) that is deplorably or contemptibly bad or mean.
Miscellaneous vs Assorted vs Heterogeneous vs Motley vs Promiscuous
Miscellaneous, assorted, heterogeneous, motley, promiscuous are comparable when they mean marked by diversity or variety and are applied to the things that make up a group, a collection, or a mass, or to a group, collection, or mass.
Mirth vs Glee vs Jollity vs Hilarity
Mirth, glee, jollity, hilarity are comparable when they mean the mood or temper of a person or a group of person manifesting joy or high spirits especially in laughter, play or merrymaking.
Mind vs Intellect vs Soul vs Psyche vs Brain vs Intelligence vs Wit
Mind, intellect, soul, psyche, brain, intelligence, wit are comparable when they mean the sum total of powers.
Method vs Mode vs Manner vs Way vs Fashion vs System
Method, mode, manner, way, fashion, system are comparable when they denote the means taken or the plan or procedure followed in doing a kind of work or in achieving an end.
Merry vs Blithe vs Jocund vs Jovial vs Jolly
Merry, blithe, jocund, jovial, jolly mean indicating or showing high spirits or lightheartedness often in play and laughter.
Mere vs Bare
Mere, bare are often employed with little or no distinction in the sense of being such as the term qualified states but nothing more.
Mercy vs Charity vs Grace vs Clemency vs Lenity
Mercy, charity, grace, clemency, lenity are comparable when meaning the disposition to show compassion or kindness in one's treatment of others, especially of those who offend one and who are in one's power to punish or rebuke.
Mercenary vs Hireling vs Venal vs Hack
Mercenary, hireling, venal, hack are comparable though not closely synonymous terms when they are applied to persons, or their acts, services, or products with the meaning actuated or motivated chiefly by a desire for profit.