Synonyms of the word

illegible

• adj. Not clear enough to be read; unreadable; not legible or decipherable.

dirty

• adj. Unclean; covered with or containing unpleasant substances such as dirt or grime.
• adj. That makes one unclean; corrupting, infecting.
• adj. Morally unclean; obscene or indecent, especially sexually.
• adj. Dishonourable; violating accepted standards or rules.
• adj. Corrupt, illegal, or improper.
• adj. Out of tune.
• adj. Of color, discolored by impurities.
• adj. (computing) Containing data which need to be written back to a larger memory.
• adj. (slang) Carrying illegal drugs among one's possessions or inside of one's bloodstream.
• adj. (informal) Used as an intensifier, especially in conjunction with "great".
• adj. Sleety; gusty; stormy.
• adv. In a dirty manner.
• v. (transitive) To make (something) dirty.
• v. (transitive) To stain or tarnish (somebody) with dishonor.
• v. (transitive) To debase by distorting the real nature of (something).
• v. (intransitive) To become soiled.

foul

• adj. Covered with, or containing unclean matter; dirty.
• adj. (of words or a way of speaking) obscene, vulgar or abusive.
• adj. Detestable, unpleasant.
• adj. Disgusting, repulsive; causing disgust.
• adj. (obsolete) Ugly; homely; poor.
• adj. (of the weather) Unpleasant, stormy or rainy.
• adj. Dishonest or not conforming to the established rules and customs of a game, conflict, test, etc.
• adj. (nautical) Entangled and therefore restricting free movement, not clear.
• adj. (baseball) Outside of the base lines; in foul territory.
• v. (transitive) To make dirty.
• v. (transitive) To besmirch.
• v. (transitive) To clog or obstruct.
• v. (transitive, nautical) To entangle.
• v. (transitive, basketball) To make contact with an opposing player in order to gain advantage.
• v. (transitive, baseball) To hit outside of the baselines.
• v. (intransitive) To become clogged.
• v. (intransitive) To become entangled.
• v. (intransitive, basketball) To commit a foul.
• v. (intransitive, baseball) To hit a ball outside of the baselines.
• n. (sports) A breach of the rules of a game, especially one involving inappropriate contact with an opposing…
• n. (bowling) A (usually accidental) contact between a bowler and the lane before the bowler has released…
• n. (baseball) A foul ball, a ball which has been hit outside of the base lines.

indecipherable

• adj. Not decipherable; impossible to decode, read, understand or comprehend.

unclear

• adj. Ambiguous; liable to more than one interpretation.
• adj. Not clearly or explicitly defined.
• adj. Not easy to see or read; indecipherable or unreadable.
• adj. Not having a clear idea; uncertain.

undecipherable

• adj. Not easily deciphered; difficult to read.

unreadable

• adj. That cannot be read or is not easy to read.
• adj. Not sufficiently interesting to be worth reading.